20731656232

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1\times {\mathrm{18541}}^1$

素因数の和:19082

約数の個数: 64

約数和(自身を含む): 45604419840

約数和(自身を除く): 24872763608

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 287, 328, 487, 574, 974, 1148, 1948, 2296, 3409, 3896, 6818, 13636, 18541, 19967, 27272, 37082, 39934, 74164, 79868, 129787, 139769, 148328, 159736, 259574, 279538, 519148, 559076, 760181, 1038296, 1118152, 1520362, 3040724, 5321267, 6081448, 9029467, 10642534, 18058934, 21285068, 36117868, 42570136, 63206269, 72235736, 126412538, 252825076, 370208147, 505650152, 740416294, 1480832588, 2591457029, 2961665176, 5182914058, 10365828116, 20731656232]

約数ペア:

[(1, 20731656232), (2, 10365828116), (4, 5182914058), (7, 2961665176), (8, 2591457029), (14, 1480832588), (28, 740416294), (41, 505650152), (56, 370208147), (82, 252825076), (164, 126412538), (287, 72235736), (328, 63206269), (487, 42570136), (574, 36117868), (974, 21285068), (1148, 18058934), (1948, 10642534), (2296, 9029467), (3409, 6081448), (3896, 5321267), (6818, 3040724), (13636, 1520362), (18541, 1118152), (19967, 1038296), (27272, 760181), (37082, 559076), (39934, 519148), (74164, 279538), (79868, 259574), (129787, 159736), (139769, 148328)]