212496520

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{19603}}^1$

素因数の和:19885

約数の個数: 32

約数和(自身を含む): 479905920

約数和(自身を除く): 267409400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 19603, 39206, 78412, 98015, 156824, 196030, 392060, 784120, 5312413, 10624826, 21249652, 26562065, 42499304, 53124130, 106248260, 212496520]

約数ペア:

[(1, 212496520), (2, 106248260), (4, 53124130), (5, 42499304), (8, 26562065), (10, 21249652), (20, 10624826), (40, 5312413), (271, 784120), (542, 392060), (1084, 196030), (1355, 156824), (2168, 98015), (2710, 78412), (5420, 39206), (10840, 19603)]