212219960

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{20173}}^1$

素因数の和:20447

約数の個数: 32

約数和(自身を含む): 479334240

約数和(自身を除く): 267114280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 20173, 40346, 80692, 100865, 161384, 201730, 403460, 806920, 5305499, 10610998, 21221996, 26527495, 42443992, 53054990, 106109980, 212219960]

約数ペア:

[(1, 212219960), (2, 106109980), (4, 53054990), (5, 42443992), (8, 26527495), (10, 21221996), (20, 10610998), (40, 5305499), (263, 806920), (526, 403460), (1052, 201730), (1315, 161384), (2104, 100865), (2630, 80692), (5260, 40346), (10520, 20173)]