64974980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{66301}}^1$

素因数の和:66324

約数の個数: 36

約数和(自身を含む): 158726988

約数和(自身を除く): 93752008

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 66301, 132602, 265204, 331505, 464107, 663010, 928214, 1326020, 1856428, 2320535, 3248749, 4641070, 6497498, 9282140, 12994996, 16243745, 32487490, 64974980]

約数ペア:

[(1, 64974980), (2, 32487490), (4, 16243745), (5, 12994996), (7, 9282140), (10, 6497498), (14, 4641070), (20, 3248749), (28, 2320535), (35, 1856428), (49, 1326020), (70, 928214), (98, 663010), (140, 464107), (196, 331505), (245, 265204), (490, 132602), (980, 66301)]