128390220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 288

約数和(自身を含む): 486420480

約数和(自身を除く): 358030260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 31, 35, 36, 38, 42, 45, 57, 60, 62, 63, 70, 76, 84, 90, 93, 95, 105, 114, 124, 126, 133, 140, 155, 171, 173, 180, 186, 190, 210, 217, 228, 252, 266, 279, 285, 310, 315, 342, 346, 372, 380, 399, 420, 434, 465, 519, 532, 558, 570, 589, 620, 630, 651, 665, 684, 692, 798, 855, 865, 868, 930, 1038, 1085, 1116, 1140, 1178, 1197, 1211, 1260, 1302, 1330, 1395, 1557, 1596, 1710, 1730, 1767, 1860, 1953, 1995, 2076, 2170, 2356, 2394, 2422, 2595, 2604, 2660, 2790, 2945, 3114, 3255, 3287, 3420, 3460, 3534, 3633, 3906, 3990, 4123, 4340, 4788, 4844, 5190, 5301, 5363, 5580, 5890, 5985, 6055, 6228, 6510, 6574, 7068, 7266, 7785, 7812, 7980, 8246, 8835, 9765, 9861, 10380, 10602, 10726, 10899, 11780, 11970, 12110, 12369, 13020, 13148, 14532, 15570, 16089, 16435, 16492, 17670, 18165, 19530, 19722, 20615, 21204, 21452, 21798, 23009, 23940, 24220, 24738, 26505, 26815, 29583, 31140, 32178, 32870, 35340, 36330, 37107, 37541, 39060, 39444, 41230, 43596, 46018, 48267, 49305, 49476, 53010, 53630, 54495, 59166, 61845, 64356, 65740, 69027, 72660, 74214, 75082, 80445, 82460, 92036, 96534, 98610, 101897, 106020, 107260, 108990, 112623, 115045, 118332, 123690, 138054, 147915, 148428, 150164, 160890, 185535, 187705, 193068, 197220, 203794, 207081, 217980, 225246, 230090, 241335, 247380, 276108, 295830, 305691, 321780, 337869, 345135, 371070, 375410, 407588, 414162, 450492, 460180, 482670, 509485, 563115, 591660, 611382, 675738, 690270, 713279, 742140, 750820, 828324, 917073, 965340, 1018970, 1035405, 1126230, 1222764, 1351476, 1380540, 1426558, 1528455, 1689345, 1834146, 2037940, 2070810, 2139837, 2252460, 2853116, 3056910, 3378690, 3566395, 3668292, 4141620, 4279674, 4585365, 6113820, 6419511, 6757380, 7132790, 8559348, 9170730, 10699185, 12839022, 14265580, 18341460, 21398370, 25678044, 32097555, 42796740, 64195110, 128390220]

約数ペア:

[(1, 128390220), (2, 64195110), (3, 42796740), (4, 32097555), (5, 25678044), (6, 21398370), (7, 18341460), (9, 14265580), (10, 12839022), (12, 10699185), (14, 9170730), (15, 8559348), (18, 7132790), (19, 6757380), (20, 6419511), (21, 6113820), (28, 4585365), (30, 4279674), (31, 4141620), (35, 3668292), (36, 3566395), (38, 3378690), (42, 3056910), (45, 2853116), (57, 2252460), (60, 2139837), (62, 2070810), (63, 2037940), (70, 1834146), (76, 1689345), (84, 1528455), (90, 1426558), (93, 1380540), (95, 1351476), (105, 1222764), (114, 1126230), (124, 1035405), (126, 1018970), (133, 965340), (140, 917073), (155, 828324), (171, 750820), (173, 742140), (180, 713279), (186, 690270), (190, 675738), (210, 611382), (217, 591660), (228, 563115), (252, 509485), (266, 482670), (279, 460180), (285, 450492), (310, 414162), (315, 407588), (342, 375410), (346, 371070), (372, 345135), (380, 337869), (399, 321780), (420, 305691), (434, 295830), (465, 276108), (519, 247380), (532, 241335), (558, 230090), (570, 225246), (589, 217980), (620, 207081), (630, 203794), (651, 197220), (665, 193068), (684, 187705), (692, 185535), (798, 160890), (855, 150164), (865, 148428), (868, 147915), (930, 138054), (1038, 123690), (1085, 118332), (1116, 115045), (1140, 112623), (1178, 108990), (1197, 107260), (1211, 106020), (1260, 101897), (1302, 98610), (1330, 96534), (1395, 92036), (1557, 82460), (1596, 80445), (1710, 75082), (1730, 74214), (1767, 72660), (1860, 69027), (1953, 65740), (1995, 64356), (2076, 61845), (2170, 59166), (2356, 54495), (2394, 53630), (2422, 53010), (2595, 49476), (2604, 49305), (2660, 48267), (2790, 46018), (2945, 43596), (3114, 41230), (3255, 39444), (3287, 39060), (3420, 37541), (3460, 37107), (3534, 36330), (3633, 35340), (3906, 32870), (3990, 32178), (4123, 31140), (4340, 29583), (4788, 26815), (4844, 26505), (5190, 24738), (5301, 24220), (5363, 23940), (5580, 23009), (5890, 21798), (5985, 21452), (6055, 21204), (6228, 20615), (6510, 19722), (6574, 19530), (7068, 18165), (7266, 17670), (7785, 16492), (7812, 16435), (7980, 16089), (8246, 15570), (8835, 14532), (9765, 13148), (9861, 13020), (10380, 12369), (10602, 12110), (10726, 11970), (10899, 11780)]