19398860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74611}}^1$

素因数の和:74633

約数の個数: 24

約数和(自身を含む): 43871856

約数和(自身を除く): 24472996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74611, 149222, 298444, 373055, 746110, 969943, 1492220, 1939886, 3879772, 4849715, 9699430, 19398860]

約数ペア:

[(1, 19398860), (2, 9699430), (4, 4849715), (5, 3879772), (10, 1939886), (13, 1492220), (20, 969943), (26, 746110), (52, 373055), (65, 298444), (130, 149222), (260, 74611)]