427960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:847

約数の個数: 32

約数和(自身を含む): 1038240

約数和(自身を除く): 610280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 823, 1646, 3292, 4115, 6584, 8230, 10699, 16460, 21398, 32920, 42796, 53495, 85592, 106990, 213980, 427960]

約数ペア:

[(1, 427960), (2, 213980), (4, 106990), (5, 85592), (8, 53495), (10, 42796), (13, 32920), (20, 21398), (26, 16460), (40, 10699), (52, 8230), (65, 6584), (104, 4115), (130, 3292), (260, 1646), (520, 823)]