402602780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{25841}}^1$

素因数の和:25910

約数の個数: 48

約数和(自身を含む): 911705760

約数和(自身を除く): 509102980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 15580, 25841, 51682, 103364, 129205, 258410, 490979, 516820, 981958, 1059481, 1963916, 2118962, 2454895, 4237924, 4909790, 5297405, 9819580, 10594810, 20130139, 21189620, 40260278, 80520556, 100650695, 201301390, 402602780]

約数ペア:

[(1, 402602780), (2, 201301390), (4, 100650695), (5, 80520556), (10, 40260278), (19, 21189620), (20, 20130139), (38, 10594810), (41, 9819580), (76, 5297405), (82, 4909790), (95, 4237924), (164, 2454895), (190, 2118962), (205, 1963916), (380, 1059481), (410, 981958), (779, 516820), (820, 490979), (1558, 258410), (3116, 129205), (3895, 103364), (7790, 51682), (15580, 25841)]