871660240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{990523}}^1$

素因数の和:990547

約数の個数: 40

約数和(自身を含む): 2210849568

約数和(自身を除く): 1339189328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 990523, 1981046, 3962092, 4952615, 7924184, 9905230, 10895753, 15848368, 19810460, 21791506, 39620920, 43583012, 54478765, 79241840, 87166024, 108957530, 174332048, 217915060, 435830120, 871660240]

約数ペア:

[(1, 871660240), (2, 435830120), (4, 217915060), (5, 174332048), (8, 108957530), (10, 87166024), (11, 79241840), (16, 54478765), (20, 43583012), (22, 39620920), (40, 21791506), (44, 19810460), (55, 15848368), (80, 10895753), (88, 9905230), (110, 7924184), (176, 4952615), (220, 3962092), (440, 1981046), (880, 990523)]