31883480

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 74325600

約数和(自身を除く): 42442120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 122, 146, 179, 244, 292, 305, 358, 365, 488, 584, 610, 716, 730, 895, 1220, 1432, 1460, 1790, 2440, 2920, 3580, 4453, 7160, 8906, 10919, 13067, 17812, 21838, 22265, 26134, 35624, 43676, 44530, 52268, 54595, 65335, 87352, 89060, 104536, 109190, 130670, 178120, 218380, 261340, 436760, 522680, 797087, 1594174, 3188348, 3985435, 6376696, 7970870, 15941740, 31883480]

約数ペア:

[(1, 31883480), (2, 15941740), (4, 7970870), (5, 6376696), (8, 3985435), (10, 3188348), (20, 1594174), (40, 797087), (61, 522680), (73, 436760), (122, 261340), (146, 218380), (179, 178120), (244, 130670), (292, 109190), (305, 104536), (358, 89060), (365, 87352), (488, 65335), (584, 54595), (610, 52268), (716, 44530), (730, 43676), (895, 35624), (1220, 26134), (1432, 22265), (1460, 21838), (1790, 17812), (2440, 13067), (2920, 10919), (3580, 8906), (4453, 7160)]