42144020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123953}}^1$

素因数の和:123979

約数の個数: 24

約数和(自身を含む): 93709224

約数和(自身を除く): 51565204

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123953, 247906, 495812, 619765, 1239530, 2107201, 2479060, 4214402, 8428804, 10536005, 21072010, 42144020]

約数ペア:

[(1, 42144020), (2, 21072010), (4, 10536005), (5, 8428804), (10, 4214402), (17, 2479060), (20, 2107201), (34, 1239530), (68, 619765), (85, 495812), (170, 247906), (340, 123953)]