57660520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 133747200

約数和(自身を除く): 76086680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 257, 284, 316, 355, 395, 514, 568, 632, 710, 790, 1028, 1285, 1420, 1580, 2056, 2570, 2840, 3160, 5140, 5609, 10280, 11218, 18247, 20303, 22436, 28045, 36494, 40606, 44872, 56090, 72988, 81212, 91235, 101515, 112180, 145976, 162424, 182470, 203030, 224360, 364940, 406060, 729880, 812120, 1441513, 2883026, 5766052, 7207565, 11532104, 14415130, 28830260, 57660520]

約数ペア:

[(1, 57660520), (2, 28830260), (4, 14415130), (5, 11532104), (8, 7207565), (10, 5766052), (20, 2883026), (40, 1441513), (71, 812120), (79, 729880), (142, 406060), (158, 364940), (257, 224360), (284, 203030), (316, 182470), (355, 162424), (395, 145976), (514, 112180), (568, 101515), (632, 91235), (710, 81212), (790, 72988), (1028, 56090), (1285, 44872), (1420, 40606), (1580, 36494), (2056, 28045), (2570, 22436), (2840, 20303), (3160, 18247), (5140, 11218), (5609, 10280)]