31502640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:491

約数の個数: 160

約数和(自身を含む): 109992960

約数和(自身を除く): 78490320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 39, 40, 46, 48, 52, 60, 65, 69, 78, 80, 92, 104, 115, 120, 130, 138, 156, 184, 195, 208, 230, 240, 260, 276, 299, 312, 345, 368, 390, 439, 460, 520, 552, 598, 624, 690, 780, 878, 897, 920, 1040, 1104, 1196, 1317, 1380, 1495, 1560, 1756, 1794, 1840, 2195, 2392, 2634, 2760, 2990, 3120, 3512, 3588, 4390, 4485, 4784, 5268, 5520, 5707, 5980, 6585, 7024, 7176, 8780, 8970, 10097, 10536, 11414, 11960, 13170, 14352, 17121, 17560, 17940, 20194, 21072, 22828, 23920, 26340, 28535, 30291, 34242, 35120, 35880, 40388, 45656, 50485, 52680, 57070, 60582, 68484, 71760, 80776, 85605, 91312, 100970, 105360, 114140, 121164, 131261, 136968, 151455, 161552, 171210, 201940, 228280, 242328, 262522, 273936, 302910, 342420, 393783, 403880, 456560, 484656, 525044, 605820, 656305, 684840, 787566, 807760, 1050088, 1211640, 1312610, 1369680, 1575132, 1968915, 2100176, 2423280, 2625220, 3150264, 3937830, 5250440, 6300528, 7875660, 10500880, 15751320, 31502640]

約数ペア:

[(1, 31502640), (2, 15751320), (3, 10500880), (4, 7875660), (5, 6300528), (6, 5250440), (8, 3937830), (10, 3150264), (12, 2625220), (13, 2423280), (15, 2100176), (16, 1968915), (20, 1575132), (23, 1369680), (24, 1312610), (26, 1211640), (30, 1050088), (39, 807760), (40, 787566), (46, 684840), (48, 656305), (52, 605820), (60, 525044), (65, 484656), (69, 456560), (78, 403880), (80, 393783), (92, 342420), (104, 302910), (115, 273936), (120, 262522), (130, 242328), (138, 228280), (156, 201940), (184, 171210), (195, 161552), (208, 151455), (230, 136968), (240, 131261), (260, 121164), (276, 114140), (299, 105360), (312, 100970), (345, 91312), (368, 85605), (390, 80776), (439, 71760), (460, 68484), (520, 60582), (552, 57070), (598, 52680), (624, 50485), (690, 45656), (780, 40388), (878, 35880), (897, 35120), (920, 34242), (1040, 30291), (1104, 28535), (1196, 26340), (1317, 23920), (1380, 22828), (1495, 21072), (1560, 20194), (1756, 17940), (1794, 17560), (1840, 17121), (2195, 14352), (2392, 13170), (2634, 11960), (2760, 11414), (2990, 10536), (3120, 10097), (3512, 8970), (3588, 8780), (4390, 7176), (4485, 7024), (4784, 6585), (5268, 5980), (5520, 5707)]