278425640

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{9419}}^1$

素因数の和:10169

約数の個数: 32

約数和(自身を含む): 627372000

約数和(自身を除く): 348946360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1478, 2956, 3695, 5912, 7390, 9419, 14780, 18838, 29560, 37676, 47095, 75352, 94190, 188380, 376760, 6960641, 13921282, 27842564, 34803205, 55685128, 69606410, 139212820, 278425640]

約数ペア:

[(1, 278425640), (2, 139212820), (4, 69606410), (5, 55685128), (8, 34803205), (10, 27842564), (20, 13921282), (40, 6960641), (739, 376760), (1478, 188380), (2956, 94190), (3695, 75352), (5912, 47095), (7390, 37676), (9419, 29560), (14780, 18838)]