80857420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25111}}^1$

素因数の和:25150

約数の個数: 48

約数和(自身を含む): 202503168

約数和(自身を除く): 121645748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 25111, 50222, 100444, 125555, 175777, 251110, 351554, 502220, 577553, 703108, 878885, 1155106, 1757770, 2310212, 2887765, 3515540, 4042871, 5775530, 8085742, 11551060, 16171484, 20214355, 40428710, 80857420]

約数ペア:

[(1, 80857420), (2, 40428710), (4, 20214355), (5, 16171484), (7, 11551060), (10, 8085742), (14, 5775530), (20, 4042871), (23, 3515540), (28, 2887765), (35, 2310212), (46, 1757770), (70, 1155106), (92, 878885), (115, 703108), (140, 577553), (161, 502220), (230, 351554), (322, 251110), (460, 175777), (644, 125555), (805, 100444), (1610, 50222), (3220, 25111)]