20005968

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2557}}^1$

素因数の和:2731

約数の個数: 40

約数和(自身を含む): 52019488

約数和(自身を除く): 32013520

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2557, 2608, 3912, 5114, 7671, 7824, 10228, 15342, 20456, 30684, 40912, 61368, 122736, 416791, 833582, 1250373, 1667164, 2500746, 3334328, 5001492, 6668656, 10002984, 20005968]

約数ペア:

[(1, 20005968), (2, 10002984), (3, 6668656), (4, 5001492), (6, 3334328), (8, 2500746), (12, 1667164), (16, 1250373), (24, 833582), (48, 416791), (163, 122736), (326, 61368), (489, 40912), (652, 30684), (978, 20456), (1304, 15342), (1956, 10228), (2557, 7824), (2608, 7671), (3912, 5114)]