31639180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{599}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 70560000

約数和(自身を除く): 38920820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 599, 695, 1198, 1390, 2396, 2641, 2780, 2995, 5282, 5990, 10564, 11381, 11980, 13205, 22762, 26410, 45524, 52820, 56905, 83261, 113810, 166522, 227620, 333044, 416305, 832610, 1581959, 1665220, 3163918, 6327836, 7909795, 15819590, 31639180]

約数ペア:

[(1, 31639180), (2, 15819590), (4, 7909795), (5, 6327836), (10, 3163918), (19, 1665220), (20, 1581959), (38, 832610), (76, 416305), (95, 333044), (139, 227620), (190, 166522), (278, 113810), (380, 83261), (556, 56905), (599, 52820), (695, 45524), (1198, 26410), (1390, 22762), (2396, 13205), (2641, 11980), (2780, 11381), (2995, 10564), (5282, 5990)]