161089640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{797}}^1$

素因数の和:1002

約数の個数: 64

約数和(自身を含む): 376911360

約数和(自身を除く): 215821720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 620, 652, 797, 815, 1240, 1304, 1594, 1630, 3188, 3260, 3985, 5053, 6376, 6520, 7970, 10106, 15940, 20212, 24707, 25265, 31880, 40424, 49414, 50530, 98828, 101060, 123535, 129911, 197656, 202120, 247070, 259822, 494140, 519644, 649555, 988280, 1039288, 1299110, 2598220, 4027241, 5196440, 8054482, 16108964, 20136205, 32217928, 40272410, 80544820, 161089640]

約数ペア:

[(1, 161089640), (2, 80544820), (4, 40272410), (5, 32217928), (8, 20136205), (10, 16108964), (20, 8054482), (31, 5196440), (40, 4027241), (62, 2598220), (124, 1299110), (155, 1039288), (163, 988280), (248, 649555), (310, 519644), (326, 494140), (620, 259822), (652, 247070), (797, 202120), (815, 197656), (1240, 129911), (1304, 123535), (1594, 101060), (1630, 98828), (3188, 50530), (3260, 49414), (3985, 40424), (5053, 31880), (6376, 25265), (6520, 24707), (7970, 20212), (10106, 15940)]