129942680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{464081}}^1$

素因数の和:464099

約数の個数: 32

約数和(自身を含む): 334139040

約数和(自身を除く): 204196360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 464081, 928162, 1856324, 2320405, 3248567, 3712648, 4640810, 6497134, 9281620, 12994268, 16242835, 18563240, 25988536, 32485670, 64971340, 129942680]

約数ペア:

[(1, 129942680), (2, 64971340), (4, 32485670), (5, 25988536), (7, 18563240), (8, 16242835), (10, 12994268), (14, 9281620), (20, 6497134), (28, 4640810), (35, 3712648), (40, 3248567), (56, 2320405), (70, 1856324), (140, 928162), (280, 464081)]