318233800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{197}}^2$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 761806710

約数和(自身を除く): 443572910

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 197, 200, 205, 328, 394, 410, 788, 820, 985, 1025, 1576, 1640, 1970, 2050, 3940, 4100, 4925, 7880, 8077, 8200, 9850, 16154, 19700, 32308, 38809, 39400, 40385, 64616, 77618, 80770, 155236, 161540, 194045, 201925, 310472, 323080, 388090, 403850, 776180, 807700, 970225, 1552360, 1591169, 1615400, 1940450, 3182338, 3880900, 6364676, 7761800, 7955845, 12729352, 15911690, 31823380, 39779225, 63646760, 79558450, 159116900, 318233800]

約数ペア:

[(1, 318233800), (2, 159116900), (4, 79558450), (5, 63646760), (8, 39779225), (10, 31823380), (20, 15911690), (25, 12729352), (40, 7955845), (41, 7761800), (50, 6364676), (82, 3880900), (100, 3182338), (164, 1940450), (197, 1615400), (200, 1591169), (205, 1552360), (328, 970225), (394, 807700), (410, 776180), (788, 403850), (820, 388090), (985, 323080), (1025, 310472), (1576, 201925), (1640, 194045), (1970, 161540), (2050, 155236), (3940, 80770), (4100, 77618), (4925, 64616), (7880, 40385), (8077, 39400), (8200, 38809), (9850, 32308), (16154, 19700)]