31518320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:294

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 45619600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 179, 248, 284, 310, 355, 358, 496, 568, 620, 710, 716, 895, 1136, 1240, 1420, 1432, 1790, 2201, 2480, 2840, 2864, 3580, 4402, 5549, 5680, 7160, 8804, 11005, 11098, 12709, 14320, 17608, 22010, 22196, 25418, 27745, 35216, 44020, 44392, 50836, 55490, 63545, 88040, 88784, 101672, 110980, 127090, 176080, 203344, 221960, 254180, 393979, 443920, 508360, 787958, 1016720, 1575916, 1969895, 3151832, 3939790, 6303664, 7879580, 15759160, 31518320]

約数ペア:

[(1, 31518320), (2, 15759160), (4, 7879580), (5, 6303664), (8, 3939790), (10, 3151832), (16, 1969895), (20, 1575916), (31, 1016720), (40, 787958), (62, 508360), (71, 443920), (80, 393979), (124, 254180), (142, 221960), (155, 203344), (179, 176080), (248, 127090), (284, 110980), (310, 101672), (355, 88784), (358, 88040), (496, 63545), (568, 55490), (620, 50836), (710, 44392), (716, 44020), (895, 35216), (1136, 27745), (1240, 25418), (1420, 22196), (1432, 22010), (1790, 17608), (2201, 14320), (2480, 12709), (2840, 11098), (2864, 11005), (3580, 8804), (4402, 7160), (5549, 5680)]