15656920

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 36936000

約数和(自身を除く): 21279080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 149, 185, 284, 296, 298, 355, 370, 568, 596, 710, 740, 745, 1192, 1420, 1480, 1490, 2627, 2840, 2980, 5254, 5513, 5960, 10508, 10579, 11026, 13135, 21016, 21158, 22052, 26270, 27565, 42316, 44104, 52540, 52895, 55130, 84632, 105080, 105790, 110260, 211580, 220520, 391423, 423160, 782846, 1565692, 1957115, 3131384, 3914230, 7828460, 15656920]

約数ペア:

[(1, 15656920), (2, 7828460), (4, 3914230), (5, 3131384), (8, 1957115), (10, 1565692), (20, 782846), (37, 423160), (40, 391423), (71, 220520), (74, 211580), (142, 110260), (148, 105790), (149, 105080), (185, 84632), (284, 55130), (296, 52895), (298, 52540), (355, 44104), (370, 42316), (568, 27565), (596, 26270), (710, 22052), (740, 21158), (745, 21016), (1192, 13135), (1420, 11026), (1480, 10579), (1490, 10508), (2627, 5960), (2840, 5513), (2980, 5254)]