19888860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1571}}^1$

素因数の和:1794

約数の個数: 48

約数和(自身を含む): 55988352

約数和(自身を除く): 36099492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1571, 2110, 2532, 3142, 3165, 4220, 4713, 6284, 6330, 7855, 9426, 12660, 15710, 18852, 23565, 31420, 47130, 94260, 331481, 662962, 994443, 1325924, 1657405, 1988886, 3314810, 3977772, 4972215, 6629620, 9944430, 19888860]

約数ペア:

[(1, 19888860), (2, 9944430), (3, 6629620), (4, 4972215), (5, 3977772), (6, 3314810), (10, 1988886), (12, 1657405), (15, 1325924), (20, 994443), (30, 662962), (60, 331481), (211, 94260), (422, 47130), (633, 31420), (844, 23565), (1055, 18852), (1266, 15710), (1571, 12660), (2110, 9426), (2532, 7855), (3142, 6330), (3165, 6284), (4220, 4713)]