20259616

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1625

約数の個数: 48

約数和(自身を含む): 44368128

約数和(自身を除く): 24108512

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1571, 1612, 3142, 3224, 6284, 6448, 12568, 12896, 20423, 25136, 40846, 48701, 50272, 81692, 97402, 163384, 194804, 326768, 389608, 633113, 653536, 779216, 1266226, 1558432, 2532452, 5064904, 10129808, 20259616]

約数ペア:

[(1, 20259616), (2, 10129808), (4, 5064904), (8, 2532452), (13, 1558432), (16, 1266226), (26, 779216), (31, 653536), (32, 633113), (52, 389608), (62, 326768), (104, 194804), (124, 163384), (208, 97402), (248, 81692), (403, 50272), (416, 48701), (496, 40846), (806, 25136), (992, 20423), (1571, 12896), (1612, 12568), (3142, 6448), (3224, 6284)]