20190788513

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{2273}}^1$

素因数の和:2705

約数の個数: 32

約数和(自身を含む): 23875471872

約数和(自身を除く): 3684683359

約数列:

[1, 7, 61, 71, 293, 427, 497, 2051, 2273, 4331, 15911, 17873, 20803, 30317, 125111, 138653, 145621, 161383, 665989, 970571, 1129681, 1268983, 4661923, 8882881, 9844363, 40625329, 47285219, 68910541, 284377303, 330996533, 2884398359, 20190788513]

約数ペア:

[(1, 20190788513), (7, 2884398359), (61, 330996533), (71, 284377303), (293, 68910541), (427, 47285219), (497, 40625329), (2051, 9844363), (2273, 8882881), (4331, 4661923), (15911, 1268983), (17873, 1129681), (20803, 970571), (30317, 665989), (125111, 161383), (138653, 145621)]