12486980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 28848960

約数和(自身を除く): 16361980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 269, 422, 538, 844, 1055, 1076, 1345, 2110, 2321, 2690, 2959, 4220, 4642, 5380, 5918, 9284, 11605, 11836, 14795, 23210, 29590, 46420, 56759, 59180, 113518, 227036, 283795, 567590, 624349, 1135180, 1248698, 2497396, 3121745, 6243490, 12486980]

約数ペア:

[(1, 12486980), (2, 6243490), (4, 3121745), (5, 2497396), (10, 1248698), (11, 1135180), (20, 624349), (22, 567590), (44, 283795), (55, 227036), (110, 113518), (211, 59180), (220, 56759), (269, 46420), (422, 29590), (538, 23210), (844, 14795), (1055, 11836), (1076, 11605), (1345, 9284), (2110, 5918), (2321, 5380), (2690, 4642), (2959, 4220)]