51438270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131893}}^1$

素因数の和:131916

約数の個数: 32

約数和(自身を含む): 132949152

約数和(自身を除く): 81510882

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 131893, 263786, 395679, 659465, 791358, 1318930, 1714609, 1978395, 3429218, 3956790, 5143827, 8573045, 10287654, 17146090, 25719135, 51438270]

約数ペア:

[(1, 51438270), (2, 25719135), (3, 17146090), (5, 10287654), (6, 8573045), (10, 5143827), (13, 3956790), (15, 3429218), (26, 1978395), (30, 1714609), (39, 1318930), (65, 791358), (78, 659465), (130, 395679), (195, 263786), (390, 131893)]