64790020

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{11447}}^1$

素因数の和:11739

約数の個数: 24

約数和(自身を含む): 136551744

約数和(自身を除く): 71761724

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 5660, 11447, 22894, 45788, 57235, 114470, 228940, 3239501, 6479002, 12958004, 16197505, 32395010, 64790020]

約数ペア:

[(1, 64790020), (2, 32395010), (4, 16197505), (5, 12958004), (10, 6479002), (20, 3239501), (283, 228940), (566, 114470), (1132, 57235), (1415, 45788), (2830, 22894), (5660, 11447)]