4721052020

素因数分解:

$2^2\times 5^1\times {\mathrm{13553}}^1\times {\mathrm{17417}}^1$

素因数の和:30979

約数の個数: 24

約数和(自身を含む): 9915510024

約数和(自身を除く): 5194458004

約数列:

[1, 2, 4, 5, 10, 20, 13553, 17417, 27106, 34834, 54212, 67765, 69668, 87085, 135530, 174170, 271060, 348340, 236052601, 472105202, 944210404, 1180263005, 2360526010, 4721052020]

約数ペア:

[(1, 4721052020), (2, 2360526010), (4, 1180263005), (5, 944210404), (10, 472105202), (20, 236052601), (13553, 348340), (17417, 271060), (27106, 174170), (34834, 135530), (54212, 87085), (67765, 69668)]