31401490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 32102510

約数列:

[1, 2, 5, 10, 19, 29, 38, 41, 58, 82, 95, 139, 145, 190, 205, 278, 290, 410, 551, 695, 779, 1102, 1189, 1390, 1558, 2378, 2641, 2755, 3895, 4031, 5282, 5510, 5699, 5945, 7790, 8062, 11398, 11890, 13205, 20155, 22591, 26410, 28495, 40310, 45182, 56990, 76589, 108281, 112955, 153178, 165271, 216562, 225910, 330542, 382945, 541405, 765890, 826355, 1082810, 1652710, 3140149, 6280298, 15700745, 31401490]

約数ペア:

[(1, 31401490), (2, 15700745), (5, 6280298), (10, 3140149), (19, 1652710), (29, 1082810), (38, 826355), (41, 765890), (58, 541405), (82, 382945), (95, 330542), (139, 225910), (145, 216562), (190, 165271), (205, 153178), (278, 112955), (290, 108281), (410, 76589), (551, 56990), (695, 45182), (779, 40310), (1102, 28495), (1189, 26410), (1390, 22591), (1558, 20155), (2378, 13205), (2641, 11890), (2755, 11398), (3895, 8062), (4031, 7790), (5282, 5945), (5510, 5699)]