166763860

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 355622400

約数和(自身を除く): 188858540

約数列:

[1, 2, 4, 5, 10, 20, 139, 223, 269, 278, 446, 538, 556, 695, 892, 1076, 1115, 1345, 1390, 2230, 2690, 2780, 4460, 5380, 30997, 37391, 59987, 61994, 74782, 119974, 123988, 149564, 154985, 186955, 239948, 299935, 309970, 373910, 599870, 619940, 747820, 1199740, 8338193, 16676386, 33352772, 41690965, 83381930, 166763860]

約数ペア:

[(1, 166763860), (2, 83381930), (4, 41690965), (5, 33352772), (10, 16676386), (20, 8338193), (139, 1199740), (223, 747820), (269, 619940), (278, 599870), (446, 373910), (538, 309970), (556, 299935), (695, 239948), (892, 186955), (1076, 154985), (1115, 149564), (1345, 123988), (1390, 119974), (2230, 74782), (2690, 61994), (2780, 59987), (4460, 37391), (5380, 30997)]