390353798020

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{42708293}}^1$

素因数の和:42708759

約数の個数: 24

約数和(自身を含む): 821536743384

約数和(自身を除く): 431182945364

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 4570, 9140, 42708293, 85416586, 170833172, 213541465, 427082930, 854165860, 19517689901, 39035379802, 78070759604, 97588449505, 195176899010, 390353798020]

約数ペア:

[(1, 390353798020), (2, 195176899010), (4, 97588449505), (5, 78070759604), (10, 39035379802), (20, 19517689901), (457, 854165860), (914, 427082930), (1828, 213541465), (2285, 170833172), (4570, 85416586), (9140, 42708293)]