2021981975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{2069}}^1$

素因数の和:2220

約数の個数: 48

約数和(自身を含む): 2817319680

約数和(自身を除く): 795337705

約数列:

[1, 5, 13, 25, 31, 65, 97, 155, 325, 403, 485, 775, 1261, 2015, 2069, 2425, 3007, 6305, 10075, 10345, 15035, 26897, 31525, 39091, 51725, 64139, 75175, 134485, 195455, 200693, 320695, 672425, 833807, 977275, 1003465, 1603475, 2609009, 4169035, 5017325, 6221483, 13045045, 20845175, 31107415, 65225225, 80879279, 155537075, 404396395, 2021981975]

約数ペア:

[(1, 2021981975), (5, 404396395), (13, 155537075), (25, 80879279), (31, 65225225), (65, 31107415), (97, 20845175), (155, 13045045), (325, 6221483), (403, 5017325), (485, 4169035), (775, 2609009), (1261, 1603475), (2015, 1003465), (2069, 977275), (2425, 833807), (3007, 672425), (6305, 320695), (10075, 200693), (10345, 195455), (15035, 134485), (26897, 75175), (31525, 64139), (39091, 51725)]