20457576

素因数分解:

$2^3\times 3^3\times {\mathrm{53}}^1\times {\mathrm{1787}}^1$

素因数の和:1855

約数の個数: 64

約数和(自身を含む): 57931200

約数和(自身を除く): 37473624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 53, 54, 72, 106, 108, 159, 212, 216, 318, 424, 477, 636, 954, 1272, 1431, 1787, 1908, 2862, 3574, 3816, 5361, 5724, 7148, 10722, 11448, 14296, 16083, 21444, 32166, 42888, 48249, 64332, 94711, 96498, 128664, 189422, 192996, 284133, 378844, 385992, 568266, 757688, 852399, 1136532, 1704798, 2273064, 2557197, 3409596, 5114394, 6819192, 10228788, 20457576]

約数ペア:

[(1, 20457576), (2, 10228788), (3, 6819192), (4, 5114394), (6, 3409596), (8, 2557197), (9, 2273064), (12, 1704798), (18, 1136532), (24, 852399), (27, 757688), (36, 568266), (53, 385992), (54, 378844), (72, 284133), (106, 192996), (108, 189422), (159, 128664), (212, 96498), (216, 94711), (318, 64332), (424, 48249), (477, 42888), (636, 32166), (954, 21444), (1272, 16083), (1431, 14296), (1787, 11448), (1908, 10722), (2862, 7148), (3574, 5724), (3816, 5361)]