8298440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 20088000

約数和(自身を除く): 11789560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 179, 190, 244, 305, 358, 380, 488, 610, 716, 760, 895, 1159, 1220, 1432, 1790, 2318, 2440, 3401, 3580, 4636, 5795, 6802, 7160, 9272, 10919, 11590, 13604, 17005, 21838, 23180, 27208, 34010, 43676, 46360, 54595, 68020, 87352, 109190, 136040, 207461, 218380, 414922, 436760, 829844, 1037305, 1659688, 2074610, 4149220, 8298440]

約数ペア:

[(1, 8298440), (2, 4149220), (4, 2074610), (5, 1659688), (8, 1037305), (10, 829844), (19, 436760), (20, 414922), (38, 218380), (40, 207461), (61, 136040), (76, 109190), (95, 87352), (122, 68020), (152, 54595), (179, 46360), (190, 43676), (244, 34010), (305, 27208), (358, 23180), (380, 21838), (488, 17005), (610, 13604), (716, 11590), (760, 10919), (895, 9272), (1159, 7160), (1220, 6802), (1432, 5795), (1790, 4636), (2318, 3580), (2440, 3401)]