80351800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^2\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 192286800

約数和(自身を除く): 111935000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 239, 328, 410, 478, 820, 956, 1025, 1195, 1640, 1681, 1912, 2050, 2390, 3362, 4100, 4780, 5975, 6724, 8200, 8405, 9560, 9799, 11950, 13448, 16810, 19598, 23900, 33620, 39196, 42025, 47800, 48995, 67240, 78392, 84050, 97990, 168100, 195980, 244975, 336200, 391960, 401759, 489950, 803518, 979900, 1607036, 1959800, 2008795, 3214072, 4017590, 8035180, 10043975, 16070360, 20087950, 40175900, 80351800]

約数ペア:

[(1, 80351800), (2, 40175900), (4, 20087950), (5, 16070360), (8, 10043975), (10, 8035180), (20, 4017590), (25, 3214072), (40, 2008795), (41, 1959800), (50, 1607036), (82, 979900), (100, 803518), (164, 489950), (200, 401759), (205, 391960), (239, 336200), (328, 244975), (410, 195980), (478, 168100), (820, 97990), (956, 84050), (1025, 78392), (1195, 67240), (1640, 48995), (1681, 47800), (1912, 42025), (2050, 39196), (2390, 33620), (3362, 23900), (4100, 19598), (4780, 16810), (5975, 13448), (6724, 11950), (8200, 9799), (8405, 9560)]