256986990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219647}}^1$

素因数の和:219673

約数の個数: 48

約数和(自身を含む): 719566848

約数和(自身を除く): 462579858

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 219647, 439294, 658941, 1098235, 1317882, 1976823, 2196470, 2855411, 3294705, 3953646, 5710822, 6589410, 8566233, 9884115, 14277055, 17132466, 19768230, 25698699, 28554110, 42831165, 51397398, 85662330, 128493495, 256986990]

約数ペア:

[(1, 256986990), (2, 128493495), (3, 85662330), (5, 51397398), (6, 42831165), (9, 28554110), (10, 25698699), (13, 19768230), (15, 17132466), (18, 14277055), (26, 9884115), (30, 8566233), (39, 6589410), (45, 5710822), (65, 3953646), (78, 3294705), (90, 2855411), (117, 2196470), (130, 1976823), (195, 1317882), (234, 1098235), (390, 658941), (585, 439294), (1170, 219647)]