131207080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:850

約数の個数: 64

約数和(自身を含む): 304922880

約数和(自身を除く): 173715800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 101, 188, 202, 235, 376, 404, 470, 505, 691, 808, 940, 1010, 1382, 1880, 2020, 2764, 3455, 4040, 4747, 5528, 6910, 9494, 13820, 18988, 23735, 27640, 32477, 37976, 47470, 64954, 69791, 94940, 129908, 139582, 162385, 189880, 259816, 279164, 324770, 348955, 558328, 649540, 697910, 1299080, 1395820, 2791640, 3280177, 6560354, 13120708, 16400885, 26241416, 32801770, 65603540, 131207080]

約数ペア:

[(1, 131207080), (2, 65603540), (4, 32801770), (5, 26241416), (8, 16400885), (10, 13120708), (20, 6560354), (40, 3280177), (47, 2791640), (94, 1395820), (101, 1299080), (188, 697910), (202, 649540), (235, 558328), (376, 348955), (404, 324770), (470, 279164), (505, 259816), (691, 189880), (808, 162385), (940, 139582), (1010, 129908), (1382, 94940), (1880, 69791), (2020, 64954), (2764, 47470), (3455, 37976), (4040, 32477), (4747, 27640), (5528, 23735), (6910, 18988), (9494, 13820)]