20155240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71983}}^1$

素因数の和:72001

約数の個数: 32

約数和(自身を含む): 51828480

約数和(自身を除く): 31673240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71983, 143966, 287932, 359915, 503881, 575864, 719830, 1007762, 1439660, 2015524, 2519405, 2879320, 4031048, 5038810, 10077620, 20155240]

約数ペア:

[(1, 20155240), (2, 10077620), (4, 5038810), (5, 4031048), (7, 2879320), (8, 2519405), (10, 2015524), (14, 1439660), (20, 1007762), (28, 719830), (35, 575864), (40, 503881), (56, 359915), (70, 287932), (140, 143966), (280, 71983)]