20458230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52457}}^1$

素因数の和:52480

約数の個数: 32

約数和(自身を含む): 52877664

約数和(自身を除く): 32419434

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52457, 104914, 157371, 262285, 314742, 524570, 681941, 786855, 1363882, 1573710, 2045823, 3409705, 4091646, 6819410, 10229115, 20458230]

約数ペア:

[(1, 20458230), (2, 10229115), (3, 6819410), (5, 4091646), (6, 3409705), (10, 2045823), (13, 1573710), (15, 1363882), (26, 786855), (30, 681941), (39, 524570), (65, 314742), (78, 262285), (130, 157371), (195, 104914), (390, 52457)]