131890120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106363}}^1$

素因数の和:106405

約数の個数: 32

約数和(自身を含む): 306328320

約数和(自身を除く): 174438200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106363, 212726, 425452, 531815, 850904, 1063630, 2127260, 3297253, 4254520, 6594506, 13189012, 16486265, 26378024, 32972530, 65945060, 131890120]

約数ペア:

[(1, 131890120), (2, 65945060), (4, 32972530), (5, 26378024), (8, 16486265), (10, 13189012), (20, 6594506), (31, 4254520), (40, 3297253), (62, 2127260), (124, 1063630), (155, 850904), (248, 531815), (310, 425452), (620, 212726), (1240, 106363)]