71431840

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10889}}^1$

素因数の和:10945

約数の個数: 48

約数和(自身を含む): 172889640

約数和(自身を除く): 101457800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 3280, 6560, 10889, 21778, 43556, 54445, 87112, 108890, 174224, 217780, 348448, 435560, 446449, 871120, 892898, 1742240, 1785796, 2232245, 3571592, 4464490, 7143184, 8928980, 14286368, 17857960, 35715920, 71431840]

約数ペア:

[(1, 71431840), (2, 35715920), (4, 17857960), (5, 14286368), (8, 8928980), (10, 7143184), (16, 4464490), (20, 3571592), (32, 2232245), (40, 1785796), (41, 1742240), (80, 892898), (82, 871120), (160, 446449), (164, 435560), (205, 348448), (328, 217780), (410, 174224), (656, 108890), (820, 87112), (1312, 54445), (1640, 43556), (3280, 21778), (6560, 10889)]