7828460

素因数分解:

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

素因数の和:266

約数の個数: 48

約数和(自身を含む): 17236800

約数和(自身を除く): 9408340

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 149, 185, 284, 298, 355, 370, 596, 710, 740, 745, 1420, 1490, 2627, 2980, 5254, 5513, 10508, 10579, 11026, 13135, 21158, 22052, 26270, 27565, 42316, 52540, 52895, 55130, 105790, 110260, 211580, 391423, 782846, 1565692, 1957115, 3914230, 7828460]

約数ペア:

[(1, 7828460), (2, 3914230), (4, 1957115), (5, 1565692), (10, 782846), (20, 391423), (37, 211580), (71, 110260), (74, 105790), (142, 55130), (148, 52895), (149, 52540), (185, 42316), (284, 27565), (298, 26270), (355, 22052), (370, 21158), (596, 13135), (710, 11026), (740, 10579), (745, 10508), (1420, 5513), (1490, 5254), (2627, 2980)]