279552420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:491

約数の個数: 288

約数和(自身を含む): 1061738496

約数和(自身を除く): 782186076

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 31, 34, 35, 36, 42, 45, 51, 60, 62, 63, 68, 70, 84, 85, 90, 93, 102, 105, 119, 124, 126, 140, 153, 155, 170, 180, 186, 204, 210, 217, 238, 252, 255, 279, 306, 310, 315, 340, 357, 372, 420, 421, 434, 465, 476, 510, 527, 558, 595, 612, 620, 630, 651, 714, 765, 842, 868, 930, 1020, 1054, 1071, 1085, 1116, 1190, 1260, 1263, 1302, 1395, 1428, 1530, 1581, 1684, 1785, 1860, 1953, 2105, 2108, 2142, 2170, 2380, 2526, 2604, 2635, 2790, 2947, 3060, 3162, 3255, 3570, 3689, 3789, 3906, 4210, 4284, 4340, 4743, 5052, 5270, 5355, 5580, 5894, 6315, 6324, 6510, 7140, 7157, 7378, 7578, 7812, 7905, 8420, 8841, 9486, 9765, 10540, 10710, 11067, 11788, 12630, 13020, 13051, 14314, 14735, 14756, 15156, 15810, 17682, 18445, 18945, 18972, 19530, 21420, 21471, 22134, 23715, 25260, 26102, 26523, 28628, 29470, 31620, 33201, 35364, 35785, 36890, 37890, 39060, 39153, 42942, 44205, 44268, 47430, 50099, 52204, 53046, 55335, 58940, 64413, 65255, 66402, 71570, 73780, 75780, 78306, 85884, 88410, 91357, 94860, 100198, 106092, 107355, 110670, 117459, 128826, 130510, 132615, 132804, 143140, 150297, 156612, 166005, 176820, 182714, 195765, 200396, 214710, 221340, 221867, 234918, 250495, 257652, 261020, 265230, 274071, 300594, 322065, 332010, 365428, 391530, 429420, 443734, 450891, 456785, 469836, 500990, 530460, 548142, 587295, 601188, 644130, 664020, 665601, 751485, 783060, 822213, 887468, 901782, 913570, 1001980, 1096284, 1109335, 1174590, 1288260, 1331202, 1370355, 1502970, 1553069, 1644426, 1803564, 1827140, 1996803, 2218670, 2254455, 2349180, 2662404, 2740710, 3005940, 3106138, 3288852, 3328005, 3993606, 4111065, 4437340, 4508910, 4659207, 5481420, 6212276, 6656010, 7765345, 7987212, 8222130, 9017820, 9318414, 9984015, 13312020, 13977621, 15530690, 16444260, 18636828, 19968030, 23296035, 27955242, 31061380, 39936060, 46592070, 55910484, 69888105, 93184140, 139776210, 279552420]

約数ペア:

[(1, 279552420), (2, 139776210), (3, 93184140), (4, 69888105), (5, 55910484), (6, 46592070), (7, 39936060), (9, 31061380), (10, 27955242), (12, 23296035), (14, 19968030), (15, 18636828), (17, 16444260), (18, 15530690), (20, 13977621), (21, 13312020), (28, 9984015), (30, 9318414), (31, 9017820), (34, 8222130), (35, 7987212), (36, 7765345), (42, 6656010), (45, 6212276), (51, 5481420), (60, 4659207), (62, 4508910), (63, 4437340), (68, 4111065), (70, 3993606), (84, 3328005), (85, 3288852), (90, 3106138), (93, 3005940), (102, 2740710), (105, 2662404), (119, 2349180), (124, 2254455), (126, 2218670), (140, 1996803), (153, 1827140), (155, 1803564), (170, 1644426), (180, 1553069), (186, 1502970), (204, 1370355), (210, 1331202), (217, 1288260), (238, 1174590), (252, 1109335), (255, 1096284), (279, 1001980), (306, 913570), (310, 901782), (315, 887468), (340, 822213), (357, 783060), (372, 751485), (420, 665601), (421, 664020), (434, 644130), (465, 601188), (476, 587295), (510, 548142), (527, 530460), (558, 500990), (595, 469836), (612, 456785), (620, 450891), (630, 443734), (651, 429420), (714, 391530), (765, 365428), (842, 332010), (868, 322065), (930, 300594), (1020, 274071), (1054, 265230), (1071, 261020), (1085, 257652), (1116, 250495), (1190, 234918), (1260, 221867), (1263, 221340), (1302, 214710), (1395, 200396), (1428, 195765), (1530, 182714), (1581, 176820), (1684, 166005), (1785, 156612), (1860, 150297), (1953, 143140), (2105, 132804), (2108, 132615), (2142, 130510), (2170, 128826), (2380, 117459), (2526, 110670), (2604, 107355), (2635, 106092), (2790, 100198), (2947, 94860), (3060, 91357), (3162, 88410), (3255, 85884), (3570, 78306), (3689, 75780), (3789, 73780), (3906, 71570), (4210, 66402), (4284, 65255), (4340, 64413), (4743, 58940), (5052, 55335), (5270, 53046), (5355, 52204), (5580, 50099), (5894, 47430), (6315, 44268), (6324, 44205), (6510, 42942), (7140, 39153), (7157, 39060), (7378, 37890), (7578, 36890), (7812, 35785), (7905, 35364), (8420, 33201), (8841, 31620), (9486, 29470), (9765, 28628), (10540, 26523), (10710, 26102), (11067, 25260), (11788, 23715), (12630, 22134), (13020, 21471), (13051, 21420), (14314, 19530), (14735, 18972), (14756, 18945), (15156, 18445), (15810, 17682)]