2020111028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1\times {\mathrm{761}}^1$

素因数の和:1568

約数の個数: 48

約数和(自身を含む): 3871203840

約数和(自身を除く): 1851092812

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 719, 761, 923, 1438, 1522, 1846, 2876, 3044, 3692, 9347, 9893, 18694, 19786, 37388, 39572, 51049, 54031, 102098, 108062, 204196, 216124, 547159, 663637, 702403, 1094318, 1327274, 1404806, 2188636, 2654548, 2809612, 7113067, 14226134, 28452268, 38848289, 77696578, 155393156, 505027757, 1010055514, 2020111028]

約数ペア:

[(1, 2020111028), (2, 1010055514), (4, 505027757), (13, 155393156), (26, 77696578), (52, 38848289), (71, 28452268), (142, 14226134), (284, 7113067), (719, 2809612), (761, 2654548), (923, 2188636), (1438, 1404806), (1522, 1327274), (1846, 1094318), (2876, 702403), (3044, 663637), (3692, 547159), (9347, 216124), (9893, 204196), (18694, 108062), (19786, 102098), (37388, 54031), (39572, 51049)]