31541120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 86365440

約数和(自身を除く): 54824320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 223, 260, 272, 320, 340, 416, 442, 446, 520, 544, 640, 680, 832, 884, 892, 1040, 1088, 1105, 1115, 1360, 1664, 1768, 1784, 2080, 2176, 2210, 2230, 2720, 2899, 3536, 3568, 3791, 4160, 4420, 4460, 5440, 5798, 7072, 7136, 7582, 8320, 8840, 8920, 10880, 11596, 14144, 14272, 14495, 15164, 17680, 17840, 18955, 23192, 28288, 28544, 28990, 30328, 35360, 35680, 37910, 46384, 49283, 57980, 60656, 70720, 71360, 75820, 92768, 98566, 115960, 121312, 141440, 142720, 151640, 185536, 197132, 231920, 242624, 246415, 303280, 371072, 394264, 463840, 485248, 492830, 606560, 788528, 927680, 985660, 1213120, 1577056, 1855360, 1971320, 2426240, 3154112, 3942640, 6308224, 7885280, 15770560, 31541120]

約数ペア:

[(1, 31541120), (2, 15770560), (4, 7885280), (5, 6308224), (8, 3942640), (10, 3154112), (13, 2426240), (16, 1971320), (17, 1855360), (20, 1577056), (26, 1213120), (32, 985660), (34, 927680), (40, 788528), (52, 606560), (64, 492830), (65, 485248), (68, 463840), (80, 394264), (85, 371072), (104, 303280), (128, 246415), (130, 242624), (136, 231920), (160, 197132), (170, 185536), (208, 151640), (221, 142720), (223, 141440), (260, 121312), (272, 115960), (320, 98566), (340, 92768), (416, 75820), (442, 71360), (446, 70720), (520, 60656), (544, 57980), (640, 49283), (680, 46384), (832, 37910), (884, 35680), (892, 35360), (1040, 30328), (1088, 28990), (1105, 28544), (1115, 28288), (1360, 23192), (1664, 18955), (1768, 17840), (1784, 17680), (2080, 15164), (2176, 14495), (2210, 14272), (2230, 14144), (2720, 11596), (2899, 10880), (3536, 8920), (3568, 8840), (3791, 8320), (4160, 7582), (4420, 7136), (4460, 7072), (5440, 5798)]