20595740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{523}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 47537280

約数和(自身を除く): 26941540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 523, 716, 895, 1046, 1790, 1969, 2092, 2615, 3580, 3938, 5230, 5753, 7876, 9845, 10460, 11506, 19690, 23012, 28765, 39380, 57530, 93617, 115060, 187234, 374468, 468085, 936170, 1029787, 1872340, 2059574, 4119148, 5148935, 10297870, 20595740]

約数ペア:

[(1, 20595740), (2, 10297870), (4, 5148935), (5, 4119148), (10, 2059574), (11, 1872340), (20, 1029787), (22, 936170), (44, 468085), (55, 374468), (110, 187234), (179, 115060), (220, 93617), (358, 57530), (523, 39380), (716, 28765), (895, 23012), (1046, 19690), (1790, 11506), (1969, 10460), (2092, 9845), (2615, 7876), (3580, 5753), (3938, 5230)]