90556960

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 246536136

約数和(自身を除く): 155979176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 160, 169, 170, 197, 208, 221, 260, 272, 338, 340, 394, 416, 442, 520, 544, 676, 680, 788, 845, 884, 985, 1040, 1105, 1352, 1360, 1576, 1690, 1768, 1970, 2080, 2210, 2561, 2704, 2720, 2873, 3152, 3349, 3380, 3536, 3940, 4420, 5122, 5408, 5746, 6304, 6698, 6760, 7072, 7880, 8840, 10244, 11492, 12805, 13396, 13520, 14365, 15760, 16745, 17680, 20488, 22984, 25610, 26792, 27040, 28730, 31520, 33293, 33490, 35360, 40976, 43537, 45968, 51220, 53584, 57460, 66586, 66980, 81952, 87074, 91936, 102440, 107168, 114920, 133172, 133960, 166465, 174148, 204880, 217685, 229840, 266344, 267920, 332930, 348296, 409760, 435370, 459680, 532688, 535840, 565981, 665860, 696592, 870740, 1065376, 1131962, 1331720, 1393184, 1741480, 2263924, 2663440, 2829905, 3482960, 4527848, 5326880, 5659810, 6965920, 9055696, 11319620, 18111392, 22639240, 45278480, 90556960]

約数ペア:

[(1, 90556960), (2, 45278480), (4, 22639240), (5, 18111392), (8, 11319620), (10, 9055696), (13, 6965920), (16, 5659810), (17, 5326880), (20, 4527848), (26, 3482960), (32, 2829905), (34, 2663440), (40, 2263924), (52, 1741480), (65, 1393184), (68, 1331720), (80, 1131962), (85, 1065376), (104, 870740), (130, 696592), (136, 665860), (160, 565981), (169, 535840), (170, 532688), (197, 459680), (208, 435370), (221, 409760), (260, 348296), (272, 332930), (338, 267920), (340, 266344), (394, 229840), (416, 217685), (442, 204880), (520, 174148), (544, 166465), (676, 133960), (680, 133172), (788, 114920), (845, 107168), (884, 102440), (985, 91936), (1040, 87074), (1105, 81952), (1352, 66980), (1360, 66586), (1576, 57460), (1690, 53584), (1768, 51220), (1970, 45968), (2080, 43537), (2210, 40976), (2561, 35360), (2704, 33490), (2720, 33293), (2873, 31520), (3152, 28730), (3349, 27040), (3380, 26792), (3536, 25610), (3940, 22984), (4420, 20488), (5122, 17680), (5408, 16745), (5746, 15760), (6304, 14365), (6698, 13520), (6760, 13396), (7072, 12805), (7880, 11492), (8840, 10244)]