8640980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{11677}}^1$

素因数の和:11723

約数の個数: 24

約数和(自身を含む): 18638088

約数和(自身を除く): 9997108

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 11677, 23354, 46708, 58385, 116770, 233540, 432049, 864098, 1728196, 2160245, 4320490, 8640980]

約数ペア:

[(1, 8640980), (2, 4320490), (4, 2160245), (5, 1728196), (10, 864098), (20, 432049), (37, 233540), (74, 116770), (148, 58385), (185, 46708), (370, 23354), (740, 11677)]