31082920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1723}}^1$

素因数の和:1786

約数の個数: 64

約数和(自身を含む): 78200640

約数和(自身を除く): 47117720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1723, 1804, 2255, 3446, 3608, 4510, 6892, 8615, 9020, 13784, 17230, 18040, 18953, 34460, 37906, 68920, 70643, 75812, 94765, 141286, 151624, 189530, 282572, 353215, 379060, 565144, 706430, 758120, 777073, 1412860, 1554146, 2825720, 3108292, 3885365, 6216584, 7770730, 15541460, 31082920]

約数ペア:

[(1, 31082920), (2, 15541460), (4, 7770730), (5, 6216584), (8, 3885365), (10, 3108292), (11, 2825720), (20, 1554146), (22, 1412860), (40, 777073), (41, 758120), (44, 706430), (55, 565144), (82, 379060), (88, 353215), (110, 282572), (164, 189530), (205, 151624), (220, 141286), (328, 94765), (410, 75812), (440, 70643), (451, 68920), (820, 37906), (902, 34460), (1640, 18953), (1723, 18040), (1804, 17230), (2255, 13784), (3446, 9020), (3608, 8615), (4510, 6892)]