12486920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2383}}^1$

素因数の和:2525

約数の個数: 32

約数和(自身を含む): 28321920

約数和(自身を除く): 15835000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2383, 2620, 4766, 5240, 9532, 11915, 19064, 23830, 47660, 95320, 312173, 624346, 1248692, 1560865, 2497384, 3121730, 6243460, 12486920]

約数ペア:

[(1, 12486920), (2, 6243460), (4, 3121730), (5, 2497384), (8, 1560865), (10, 1248692), (20, 624346), (40, 312173), (131, 95320), (262, 47660), (524, 23830), (655, 19064), (1048, 11915), (1310, 9532), (2383, 5240), (2620, 4766)]