220685704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{8237}}^1$

素因数の和:8457

約数の個数: 32

約数和(自身を含む): 440403480

約数和(自身を除く): 219717776

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 197, 394, 788, 1576, 3349, 6698, 8237, 13396, 16474, 26792, 32948, 65896, 140029, 280058, 560116, 1120232, 1622689, 3245378, 6490756, 12981512, 27585713, 55171426, 110342852, 220685704]

約数ペア:

[(1, 220685704), (2, 110342852), (4, 55171426), (8, 27585713), (17, 12981512), (34, 6490756), (68, 3245378), (136, 1622689), (197, 1120232), (394, 560116), (788, 280058), (1576, 140029), (3349, 65896), (6698, 32948), (8237, 26792), (13396, 16474)]