64640620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{26711}}^1$

素因数の和:26742

約数の個数: 36

約数和(自身を含む): 149213232

約数和(自身を除く): 84572612

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 26711, 53422, 106844, 133555, 267110, 293821, 534220, 587642, 1175284, 1469105, 2938210, 3232031, 5876420, 6464062, 12928124, 16160155, 32320310, 64640620]

約数ペア:

[(1, 64640620), (2, 32320310), (4, 16160155), (5, 12928124), (10, 6464062), (11, 5876420), (20, 3232031), (22, 2938210), (44, 1469105), (55, 1175284), (110, 587642), (121, 534220), (220, 293821), (242, 267110), (484, 133555), (605, 106844), (1210, 53422), (2420, 26711)]