64865360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115831}}^1$

素因数の和:115851

約数の個数: 40

約数和(自身を含む): 172358016

約数和(自身を除く): 107492656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115831, 231662, 463324, 579155, 810817, 926648, 1158310, 1621634, 1853296, 2316620, 3243268, 4054085, 4633240, 6486536, 8108170, 9266480, 12973072, 16216340, 32432680, 64865360]

約数ペア:

[(1, 64865360), (2, 32432680), (4, 16216340), (5, 12973072), (7, 9266480), (8, 8108170), (10, 6486536), (14, 4633240), (16, 4054085), (20, 3243268), (28, 2316620), (35, 1853296), (40, 1621634), (56, 1158310), (70, 926648), (80, 810817), (112, 579155), (140, 463324), (280, 231662), (560, 115831)]