78859480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281641}}^1$

素因数の和:281659

約数の個数: 32

約数和(自身を含む): 202782240

約数和(自身を除く): 123922760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281641, 563282, 1126564, 1408205, 1971487, 2253128, 2816410, 3942974, 5632820, 7885948, 9857435, 11265640, 15771896, 19714870, 39429740, 78859480]

約数ペア:

[(1, 78859480), (2, 39429740), (4, 19714870), (5, 15771896), (7, 11265640), (8, 9857435), (10, 7885948), (14, 5632820), (20, 3942974), (28, 2816410), (35, 2253128), (40, 1971487), (56, 1408205), (70, 1126564), (140, 563282), (280, 281641)]