42408860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12547}}^1$

素因数の和:12582

約数の個数: 36

約数和(自身を含む): 96443928

約数和(自身を除く): 54035068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 12547, 25094, 50188, 62735, 125470, 163111, 250940, 326222, 652444, 815555, 1631110, 2120443, 3262220, 4240886, 8481772, 10602215, 21204430, 42408860]

約数ペア:

[(1, 42408860), (2, 21204430), (4, 10602215), (5, 8481772), (10, 4240886), (13, 3262220), (20, 2120443), (26, 1631110), (52, 815555), (65, 652444), (130, 326222), (169, 250940), (260, 163111), (338, 125470), (676, 62735), (845, 50188), (1690, 25094), (3380, 12547)]