20002380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{857}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 36213780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 389, 778, 857, 1167, 1556, 1714, 1945, 2334, 2571, 3428, 3890, 4285, 4668, 5142, 5835, 7780, 8570, 10284, 11670, 12855, 17140, 23340, 25710, 51420, 333373, 666746, 1000119, 1333492, 1666865, 2000238, 3333730, 4000476, 5000595, 6667460, 10001190, 20002380]

約数ペア:

[(1, 20002380), (2, 10001190), (3, 6667460), (4, 5000595), (5, 4000476), (6, 3333730), (10, 2000238), (12, 1666865), (15, 1333492), (20, 1000119), (30, 666746), (60, 333373), (389, 51420), (778, 25710), (857, 23340), (1167, 17140), (1556, 12855), (1714, 11670), (1945, 10284), (2334, 8570), (2571, 7780), (3428, 5835), (3890, 5142), (4285, 4668)]