72861560

素因数分解:

$2^3\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{1381}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 164181600

約数和(自身を除く): 91320040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1319, 1381, 2638, 2762, 5276, 5524, 6595, 6905, 10552, 11048, 13190, 13810, 26380, 27620, 52760, 55240, 1821539, 3643078, 7286156, 9107695, 14572312, 18215390, 36430780, 72861560]

約数ペア:

[(1, 72861560), (2, 36430780), (4, 18215390), (5, 14572312), (8, 9107695), (10, 7286156), (20, 3643078), (40, 1821539), (1319, 55240), (1381, 52760), (2638, 27620), (2762, 26380), (5276, 13810), (5524, 13190), (6595, 11048), (6905, 10552)]