813307540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{125899}}^1$

素因数の和:125944

約数の個数: 48

約数和(自身を含む): 1903608000

約数和(自身を除く): 1090300460

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1292, 1615, 3230, 6460, 125899, 251798, 503596, 629495, 1258990, 2140283, 2392081, 2517980, 4280566, 4784162, 8561132, 9568324, 10701415, 11960405, 21402830, 23920810, 40665377, 42805660, 47841620, 81330754, 162661508, 203326885, 406653770, 813307540]

約数ペア:

[(1, 813307540), (2, 406653770), (4, 203326885), (5, 162661508), (10, 81330754), (17, 47841620), (19, 42805660), (20, 40665377), (34, 23920810), (38, 21402830), (68, 11960405), (76, 10701415), (85, 9568324), (95, 8561132), (170, 4784162), (190, 4280566), (323, 2517980), (340, 2392081), (380, 2140283), (646, 1258990), (1292, 629495), (1615, 503596), (3230, 251798), (6460, 125899)]