29720020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12281}}^1$

素因数の和:12312

約数の個数: 36

約数和(自身を含む): 68607252

約数和(自身を除く): 38887232

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 12281, 24562, 49124, 61405, 122810, 135091, 245620, 270182, 540364, 675455, 1350910, 1486001, 2701820, 2972002, 5944004, 7430005, 14860010, 29720020]

約数ペア:

[(1, 29720020), (2, 14860010), (4, 7430005), (5, 5944004), (10, 2972002), (11, 2701820), (20, 1486001), (22, 1350910), (44, 675455), (55, 540364), (110, 270182), (121, 245620), (220, 135091), (242, 122810), (484, 61405), (605, 49124), (1210, 24562), (2420, 12281)]