12787520

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:555

約数の個数: 56

約数和(自身を含む): 30861000

約数和(自身を除く): 18073480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 449, 712, 890, 898, 1424, 1780, 1796, 2245, 2848, 3560, 3592, 4490, 5696, 7120, 7184, 8980, 14240, 14368, 17960, 28480, 28736, 35920, 39961, 71840, 79922, 143680, 159844, 199805, 319688, 399610, 639376, 799220, 1278752, 1598440, 2557504, 3196880, 6393760, 12787520]

約数ペア:

[(1, 12787520), (2, 6393760), (4, 3196880), (5, 2557504), (8, 1598440), (10, 1278752), (16, 799220), (20, 639376), (32, 399610), (40, 319688), (64, 199805), (80, 159844), (89, 143680), (160, 79922), (178, 71840), (320, 39961), (356, 35920), (445, 28736), (449, 28480), (712, 17960), (890, 14368), (898, 14240), (1424, 8980), (1780, 7184), (1796, 7120), (2245, 5696), (2848, 4490), (3560, 3592)]