12777160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 31881600

約数和(自身を除く): 19104440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 409, 440, 568, 710, 781, 818, 1420, 1562, 1636, 2045, 2840, 3124, 3272, 3905, 4090, 4499, 6248, 7810, 8180, 8998, 15620, 16360, 17996, 22495, 29039, 31240, 35992, 44990, 58078, 89980, 116156, 145195, 179960, 232312, 290390, 319429, 580780, 638858, 1161560, 1277716, 1597145, 2555432, 3194290, 6388580, 12777160]

約数ペア:

[(1, 12777160), (2, 6388580), (4, 3194290), (5, 2555432), (8, 1597145), (10, 1277716), (11, 1161560), (20, 638858), (22, 580780), (40, 319429), (44, 290390), (55, 232312), (71, 179960), (88, 145195), (110, 116156), (142, 89980), (220, 58078), (284, 44990), (355, 35992), (409, 31240), (440, 29039), (568, 22495), (710, 17996), (781, 16360), (818, 15620), (1420, 8998), (1562, 8180), (1636, 7810), (2045, 6248), (2840, 4499), (3124, 4090), (3272, 3905)]