20145345

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1471}}^1$

素因数の和:1573

約数の個数: 32

約数和(自身を含む): 35610624

約数和(自身を除く): 15465279

約数列:

[1, 3, 5, 11, 15, 33, 55, 83, 165, 249, 415, 913, 1245, 1471, 2739, 4413, 4565, 7355, 13695, 16181, 22065, 48543, 80905, 122093, 242715, 366279, 610465, 1343023, 1831395, 4029069, 6715115, 20145345]

約数ペア:

[(1, 20145345), (3, 6715115), (5, 4029069), (11, 1831395), (15, 1343023), (33, 610465), (55, 366279), (83, 242715), (165, 122093), (249, 80905), (415, 48543), (913, 22065), (1245, 16181), (1471, 13695), (2739, 7355), (4413, 4565)]