18192680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 26908120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 173, 220, 239, 346, 440, 478, 692, 865, 956, 1195, 1384, 1730, 1903, 1912, 2390, 2629, 3460, 3806, 4780, 5258, 6920, 7612, 9515, 9560, 10516, 13145, 15224, 19030, 21032, 26290, 38060, 41347, 52580, 76120, 82694, 105160, 165388, 206735, 330776, 413470, 454817, 826940, 909634, 1653880, 1819268, 2274085, 3638536, 4548170, 9096340, 18192680]

約数ペア:

[(1, 18192680), (2, 9096340), (4, 4548170), (5, 3638536), (8, 2274085), (10, 1819268), (11, 1653880), (20, 909634), (22, 826940), (40, 454817), (44, 413470), (55, 330776), (88, 206735), (110, 165388), (173, 105160), (220, 82694), (239, 76120), (346, 52580), (440, 41347), (478, 38060), (692, 26290), (865, 21032), (956, 19030), (1195, 15224), (1384, 13145), (1730, 10516), (1903, 9560), (1912, 9515), (2390, 7612), (2629, 6920), (3460, 5258), (3806, 4780)]