18918250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{5821}}^1$

素因数の和:5851

約数の個数: 32

約数和(自身を含む): 38145744

約数和(自身を除く): 19227494

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 5821, 11642, 29105, 58210, 75673, 145525, 151346, 291050, 378365, 727625, 756730, 1455250, 1891825, 3783650, 9459125, 18918250]

約数ペア:

[(1, 18918250), (2, 9459125), (5, 3783650), (10, 1891825), (13, 1455250), (25, 756730), (26, 727625), (50, 378365), (65, 291050), (125, 151346), (130, 145525), (250, 75673), (325, 58210), (650, 29105), (1625, 11642), (3250, 5821)]