89906020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{953}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 194730480

約数和(自身を除く): 104824460

約数列:

[1, 2, 4, 5, 10, 20, 53, 89, 106, 178, 212, 265, 356, 445, 530, 890, 953, 1060, 1780, 1906, 3812, 4717, 4765, 9434, 9530, 18868, 19060, 23585, 47170, 50509, 84817, 94340, 101018, 169634, 202036, 252545, 339268, 424085, 505090, 848170, 1010180, 1696340, 4495301, 8990602, 17981204, 22476505, 44953010, 89906020]

約数ペア:

[(1, 89906020), (2, 44953010), (4, 22476505), (5, 17981204), (10, 8990602), (20, 4495301), (53, 1696340), (89, 1010180), (106, 848170), (178, 505090), (212, 424085), (265, 339268), (356, 252545), (445, 202036), (530, 169634), (890, 101018), (953, 94340), (1060, 84817), (1780, 50509), (1906, 47170), (3812, 23585), (4717, 19060), (4765, 18868), (9434, 9530)]