20104864

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1613

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23924576

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1559, 1612, 3118, 3224, 6236, 6448, 12472, 12896, 20267, 24944, 40534, 48329, 49888, 81068, 96658, 162136, 193316, 324272, 386632, 628277, 648544, 773264, 1256554, 1546528, 2513108, 5026216, 10052432, 20104864]

約数ペア:

[(1, 20104864), (2, 10052432), (4, 5026216), (8, 2513108), (13, 1546528), (16, 1256554), (26, 773264), (31, 648544), (32, 628277), (52, 386632), (62, 324272), (104, 193316), (124, 162136), (208, 96658), (248, 81068), (403, 49888), (416, 48329), (496, 40534), (806, 24944), (992, 20267), (1559, 12896), (1612, 12472), (3118, 6448), (3224, 6236)]