20125250

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 38188800

約数和(自身を除く): 18063550

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 1019, 1975, 2038, 3950, 5095, 9875, 10190, 19750, 25475, 50950, 80501, 127375, 161002, 254750, 402505, 805010, 2012525, 4025050, 10062625, 20125250]

約数ペア:

[(1, 20125250), (2, 10062625), (5, 4025050), (10, 2012525), (25, 805010), (50, 402505), (79, 254750), (125, 161002), (158, 127375), (250, 80501), (395, 50950), (790, 25475), (1019, 19750), (1975, 10190), (2038, 9875), (3950, 5095)]