55741960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{829}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 128708100

約数和(自身を除く): 72966140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 829, 1640, 1658, 1681, 3316, 3362, 4145, 6632, 6724, 8290, 8405, 13448, 16580, 16810, 33160, 33620, 33989, 67240, 67978, 135956, 169945, 271912, 339890, 679780, 1359560, 1393549, 2787098, 5574196, 6967745, 11148392, 13935490, 27870980, 55741960]

約数ペア:

[(1, 55741960), (2, 27870980), (4, 13935490), (5, 11148392), (8, 6967745), (10, 5574196), (20, 2787098), (40, 1393549), (41, 1359560), (82, 679780), (164, 339890), (205, 271912), (328, 169945), (410, 135956), (820, 67978), (829, 67240), (1640, 33989), (1658, 33620), (1681, 33160), (3316, 16810), (3362, 16580), (4145, 13448), (6632, 8405), (6724, 8290)]