2551840

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 6191640

約数和(自身を除く): 3639800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 389, 410, 656, 778, 820, 1312, 1556, 1640, 1945, 3112, 3280, 3890, 6224, 6560, 7780, 12448, 15560, 15949, 31120, 31898, 62240, 63796, 79745, 127592, 159490, 255184, 318980, 510368, 637960, 1275920, 2551840]

約数ペア:

[(1, 2551840), (2, 1275920), (4, 637960), (5, 510368), (8, 318980), (10, 255184), (16, 159490), (20, 127592), (32, 79745), (40, 63796), (41, 62240), (80, 31898), (82, 31120), (160, 15949), (164, 15560), (205, 12448), (328, 7780), (389, 6560), (410, 6224), (656, 3890), (778, 3280), (820, 3112), (1312, 1945), (1556, 1640)]