55990120

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1283}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 126191520

約数和(自身を除く): 70201400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 1283, 2182, 2566, 4364, 5132, 5455, 6415, 8728, 10264, 10910, 12830, 21820, 25660, 43640, 51320, 1399753, 2799506, 5599012, 6998765, 11198024, 13997530, 27995060, 55990120]

約数ペア:

[(1, 55990120), (2, 27995060), (4, 13997530), (5, 11198024), (8, 6998765), (10, 5599012), (20, 2799506), (40, 1399753), (1091, 51320), (1283, 43640), (2182, 25660), (2566, 21820), (4364, 12830), (5132, 10910), (5455, 10264), (6415, 8728)]