20866404

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{739}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 52794560

約数和(自身を除く): 31928156

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 181, 362, 543, 724, 739, 1086, 1478, 2172, 2217, 2353, 2956, 4434, 4706, 7059, 8868, 9412, 9607, 14118, 19214, 28236, 28821, 38428, 57642, 115284, 133759, 267518, 401277, 535036, 802554, 1605108, 1738867, 3477734, 5216601, 6955468, 10433202, 20866404]

約数ペア:

[(1, 20866404), (2, 10433202), (3, 6955468), (4, 5216601), (6, 3477734), (12, 1738867), (13, 1605108), (26, 802554), (39, 535036), (52, 401277), (78, 267518), (156, 133759), (181, 115284), (362, 57642), (543, 38428), (724, 28821), (739, 28236), (1086, 19214), (1478, 14118), (2172, 9607), (2217, 9412), (2353, 8868), (2956, 7059), (4434, 4706)]