251369820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 288

約数和(自身を含む): 891596160

約数和(自身を除く): 640226340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 71, 78, 85, 89, 90, 102, 117, 130, 142, 153, 156, 170, 178, 180, 195, 204, 213, 221, 234, 255, 260, 267, 284, 306, 340, 355, 356, 390, 426, 442, 445, 468, 510, 534, 585, 612, 639, 663, 710, 765, 780, 801, 852, 884, 890, 923, 1020, 1065, 1068, 1105, 1157, 1170, 1207, 1278, 1326, 1335, 1420, 1513, 1530, 1602, 1780, 1846, 1989, 2130, 2210, 2314, 2340, 2414, 2556, 2652, 2670, 2769, 3026, 3060, 3195, 3204, 3315, 3471, 3621, 3692, 3978, 4005, 4260, 4420, 4539, 4615, 4628, 4828, 5340, 5538, 5785, 6035, 6052, 6319, 6390, 6630, 6942, 7242, 7565, 7956, 8010, 8307, 9078, 9230, 9945, 10413, 10863, 11076, 11570, 12070, 12638, 12780, 13260, 13617, 13845, 13884, 14484, 15130, 15691, 16020, 16614, 17355, 18105, 18156, 18460, 18957, 19669, 19890, 20826, 21726, 22695, 23140, 24140, 25276, 27234, 27690, 30260, 31382, 31595, 33228, 34710, 36210, 37914, 39338, 39780, 41535, 41652, 43452, 45390, 47073, 52065, 54315, 54468, 55380, 56871, 59007, 62764, 63190, 68085, 69420, 72420, 75828, 78455, 78676, 82147, 83070, 90780, 94146, 94785, 98345, 104130, 107423, 108630, 113742, 118014, 126380, 136170, 141219, 156910, 164294, 166140, 177021, 188292, 189570, 196690, 208260, 214846, 217260, 227484, 235365, 236028, 246441, 272340, 282438, 284355, 295035, 313820, 322269, 328588, 354042, 379140, 393380, 410735, 429692, 470730, 492882, 537115, 564876, 568710, 590070, 644538, 706095, 708084, 739323, 821470, 885105, 941460, 966807, 985764, 1074230, 1137420, 1180140, 1232205, 1289076, 1396499, 1412190, 1478646, 1611345, 1642940, 1770210, 1933614, 2148460, 2464410, 2792998, 2824380, 2957292, 3222690, 3540420, 3696615, 3867228, 4189497, 4834035, 4928820, 5585996, 6445380, 6982495, 7393230, 8378994, 9668070, 12568491, 13964990, 14786460, 16757988, 19336140, 20947485, 25136982, 27929980, 41894970, 50273964, 62842455, 83789940, 125684910, 251369820]

約数ペア:

[(1, 251369820), (2, 125684910), (3, 83789940), (4, 62842455), (5, 50273964), (6, 41894970), (9, 27929980), (10, 25136982), (12, 20947485), (13, 19336140), (15, 16757988), (17, 14786460), (18, 13964990), (20, 12568491), (26, 9668070), (30, 8378994), (34, 7393230), (36, 6982495), (39, 6445380), (45, 5585996), (51, 4928820), (52, 4834035), (60, 4189497), (65, 3867228), (68, 3696615), (71, 3540420), (78, 3222690), (85, 2957292), (89, 2824380), (90, 2792998), (102, 2464410), (117, 2148460), (130, 1933614), (142, 1770210), (153, 1642940), (156, 1611345), (170, 1478646), (178, 1412190), (180, 1396499), (195, 1289076), (204, 1232205), (213, 1180140), (221, 1137420), (234, 1074230), (255, 985764), (260, 966807), (267, 941460), (284, 885105), (306, 821470), (340, 739323), (355, 708084), (356, 706095), (390, 644538), (426, 590070), (442, 568710), (445, 564876), (468, 537115), (510, 492882), (534, 470730), (585, 429692), (612, 410735), (639, 393380), (663, 379140), (710, 354042), (765, 328588), (780, 322269), (801, 313820), (852, 295035), (884, 284355), (890, 282438), (923, 272340), (1020, 246441), (1065, 236028), (1068, 235365), (1105, 227484), (1157, 217260), (1170, 214846), (1207, 208260), (1278, 196690), (1326, 189570), (1335, 188292), (1420, 177021), (1513, 166140), (1530, 164294), (1602, 156910), (1780, 141219), (1846, 136170), (1989, 126380), (2130, 118014), (2210, 113742), (2314, 108630), (2340, 107423), (2414, 104130), (2556, 98345), (2652, 94785), (2670, 94146), (2769, 90780), (3026, 83070), (3060, 82147), (3195, 78676), (3204, 78455), (3315, 75828), (3471, 72420), (3621, 69420), (3692, 68085), (3978, 63190), (4005, 62764), (4260, 59007), (4420, 56871), (4539, 55380), (4615, 54468), (4628, 54315), (4828, 52065), (5340, 47073), (5538, 45390), (5785, 43452), (6035, 41652), (6052, 41535), (6319, 39780), (6390, 39338), (6630, 37914), (6942, 36210), (7242, 34710), (7565, 33228), (7956, 31595), (8010, 31382), (8307, 30260), (9078, 27690), (9230, 27234), (9945, 25276), (10413, 24140), (10863, 23140), (11076, 22695), (11570, 21726), (12070, 20826), (12638, 19890), (12780, 19669), (13260, 18957), (13617, 18460), (13845, 18156), (13884, 18105), (14484, 17355), (15130, 16614), (15691, 16020)]