1229125880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{749467}}^1$

素因数の和:749519

約数の個数: 32

約数和(自身を含む): 2832989040

約数和(自身を除く): 1603863160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 749467, 1498934, 2997868, 3747335, 5995736, 7494670, 14989340, 29978680, 30728147, 61456294, 122912588, 153640735, 245825176, 307281470, 614562940, 1229125880]

約数ペア:

[(1, 1229125880), (2, 614562940), (4, 307281470), (5, 245825176), (8, 153640735), (10, 122912588), (20, 61456294), (40, 30728147), (41, 29978680), (82, 14989340), (164, 7494670), (205, 5995736), (328, 3747335), (410, 2997868), (820, 1498934), (1640, 749467)]