20158216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{811}}^1$

素因数の和:1069

約数の個数: 32

約数和(自身を含む): 40924800

約数和(自身を除く): 20766584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 811, 956, 1622, 1912, 3107, 3244, 6214, 6488, 10543, 12428, 21086, 24856, 42172, 84344, 193829, 387658, 775316, 1550632, 2519777, 5039554, 10079108, 20158216]

約数ペア:

[(1, 20158216), (2, 10079108), (4, 5039554), (8, 2519777), (13, 1550632), (26, 775316), (52, 387658), (104, 193829), (239, 84344), (478, 42172), (811, 24856), (956, 21086), (1622, 12428), (1912, 10543), (3107, 6488), (3244, 6214)]