253145140

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1\times {\mathrm{269}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 538513920

約数和(自身を除く): 285368780

約数列:

[1, 2, 4, 5, 10, 20, 211, 223, 269, 422, 446, 538, 844, 892, 1055, 1076, 1115, 1345, 2110, 2230, 2690, 4220, 4460, 5380, 47053, 56759, 59987, 94106, 113518, 119974, 188212, 227036, 235265, 239948, 283795, 299935, 470530, 567590, 599870, 941060, 1135180, 1199740, 12657257, 25314514, 50629028, 63286285, 126572570, 253145140]

約数ペア:

[(1, 253145140), (2, 126572570), (4, 63286285), (5, 50629028), (10, 25314514), (20, 12657257), (211, 1199740), (223, 1135180), (269, 941060), (422, 599870), (446, 567590), (538, 470530), (844, 299935), (892, 283795), (1055, 239948), (1076, 235265), (1115, 227036), (1345, 188212), (2110, 119974), (2230, 113518), (2690, 94106), (4220, 59987), (4460, 56759), (5380, 47053)]