64877680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115853}}^1$

素因数の和:115873

約数の個数: 40

約数和(自身を含む): 172390752

約数和(自身を除く): 107513072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115853, 231706, 463412, 579265, 810971, 926824, 1158530, 1621942, 1853648, 2317060, 3243884, 4054855, 4634120, 6487768, 8109710, 9268240, 12975536, 16219420, 32438840, 64877680]

約数ペア:

[(1, 64877680), (2, 32438840), (4, 16219420), (5, 12975536), (7, 9268240), (8, 8109710), (10, 6487768), (14, 4634120), (16, 4054855), (20, 3243884), (28, 2317060), (35, 1853648), (40, 1621942), (56, 1158530), (70, 926824), (80, 810971), (112, 579265), (140, 463412), (280, 231706), (560, 115853)]