203428880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:732

約数の個数: 80

約数和(自身を含む): 489812400

約数和(自身を除く): 286383520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 164, 205, 218, 328, 410, 436, 545, 569, 656, 820, 872, 1090, 1138, 1640, 1744, 2180, 2276, 2845, 3280, 4360, 4469, 4552, 5690, 8720, 8938, 9104, 11380, 17876, 22345, 22760, 23329, 35752, 44690, 45520, 46658, 62021, 71504, 89380, 93316, 116645, 124042, 178760, 186632, 233290, 248084, 310105, 357520, 373264, 466580, 496168, 620210, 933160, 992336, 1240420, 1866320, 2480840, 2542861, 4961680, 5085722, 10171444, 12714305, 20342888, 25428610, 40685776, 50857220, 101714440, 203428880]

約数ペア:

[(1, 203428880), (2, 101714440), (4, 50857220), (5, 40685776), (8, 25428610), (10, 20342888), (16, 12714305), (20, 10171444), (40, 5085722), (41, 4961680), (80, 2542861), (82, 2480840), (109, 1866320), (164, 1240420), (205, 992336), (218, 933160), (328, 620210), (410, 496168), (436, 466580), (545, 373264), (569, 357520), (656, 310105), (820, 248084), (872, 233290), (1090, 186632), (1138, 178760), (1640, 124042), (1744, 116645), (2180, 93316), (2276, 89380), (2845, 71504), (3280, 62021), (4360, 46658), (4469, 45520), (4552, 44690), (5690, 35752), (8720, 23329), (8938, 22760), (9104, 22345), (11380, 17876)]