12915500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2019

約数の個数: 48

約数和(自身を含む): 30392544

約数和(自身を除く): 17477044

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 1987, 3250, 3974, 6500, 7948, 9935, 19870, 25831, 39740, 49675, 51662, 99350, 103324, 129155, 198700, 248375, 258310, 496750, 516620, 645775, 993500, 1291550, 2583100, 3228875, 6457750, 12915500]

約数ペア:

[(1, 12915500), (2, 6457750), (4, 3228875), (5, 2583100), (10, 1291550), (13, 993500), (20, 645775), (25, 516620), (26, 496750), (50, 258310), (52, 248375), (65, 198700), (100, 129155), (125, 103324), (130, 99350), (250, 51662), (260, 49675), (325, 39740), (500, 25831), (650, 19870), (1300, 9935), (1625, 7948), (1987, 6500), (3250, 3974)]