680220640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{386489}}^1$

素因数の和:386515

約数の個数: 48

約数和(自身を含む): 1753118640

約数和(自身を除く): 1072898000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 386489, 772978, 1545956, 1932445, 3091912, 3864890, 4251379, 6183824, 7729780, 8502758, 12367648, 15459560, 17005516, 21256895, 30919120, 34011032, 42513790, 61838240, 68022064, 85027580, 136044128, 170055160, 340110320, 680220640]

約数ペア:

[(1, 680220640), (2, 340110320), (4, 170055160), (5, 136044128), (8, 85027580), (10, 68022064), (11, 61838240), (16, 42513790), (20, 34011032), (22, 30919120), (32, 21256895), (40, 17005516), (44, 15459560), (55, 12367648), (80, 8502758), (88, 7729780), (110, 6183824), (160, 4251379), (176, 3864890), (220, 3091912), (352, 1932445), (440, 1545956), (880, 772978), (1760, 386489)]