87410920

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{2003}}^1$

素因数の和:3105

約数の個数: 32

約数和(自身を含む): 196953120

約数和(自身を除く): 109542200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2003, 2182, 4006, 4364, 5455, 8012, 8728, 10015, 10910, 16024, 20030, 21820, 40060, 43640, 80120, 2185273, 4370546, 8741092, 10926365, 17482184, 21852730, 43705460, 87410920]

約数ペア:

[(1, 87410920), (2, 43705460), (4, 21852730), (5, 17482184), (8, 10926365), (10, 8741092), (20, 4370546), (40, 2185273), (1091, 80120), (2003, 43640), (2182, 40060), (4006, 21820), (4364, 20030), (5455, 16024), (8012, 10910), (8728, 10015)]