157851640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{3319}}^1$

素因数の和:3400

約数の個数: 64

約数和(自身を含む): 376488000

約数和(自身を除く): 218636360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 41, 58, 82, 116, 145, 164, 205, 232, 290, 328, 410, 580, 820, 1160, 1189, 1640, 2378, 3319, 4756, 5945, 6638, 9512, 11890, 13276, 16595, 23780, 26552, 33190, 47560, 66380, 96251, 132760, 136079, 192502, 272158, 385004, 481255, 544316, 680395, 770008, 962510, 1088632, 1360790, 1925020, 2721580, 3850040, 3946291, 5443160, 7892582, 15785164, 19731455, 31570328, 39462910, 78925820, 157851640]

約数ペア:

[(1, 157851640), (2, 78925820), (4, 39462910), (5, 31570328), (8, 19731455), (10, 15785164), (20, 7892582), (29, 5443160), (40, 3946291), (41, 3850040), (58, 2721580), (82, 1925020), (116, 1360790), (145, 1088632), (164, 962510), (205, 770008), (232, 680395), (290, 544316), (328, 481255), (410, 385004), (580, 272158), (820, 192502), (1160, 136079), (1189, 132760), (1640, 96251), (2378, 66380), (3319, 47560), (4756, 33190), (5945, 26552), (6638, 23780), (9512, 16595), (11890, 13276)]