155969960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54919}}^1$

素因数の和:55001

約数の個数: 32

約数和(自身を含む): 355881600

約数和(自身を除く): 199911640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 54919, 109838, 219676, 274595, 439352, 549190, 1098380, 2196760, 3899249, 7798498, 15596996, 19496245, 31193992, 38992490, 77984980, 155969960]

約数ペア:

[(1, 155969960), (2, 77984980), (4, 38992490), (5, 31193992), (8, 19496245), (10, 15596996), (20, 7798498), (40, 3899249), (71, 2196760), (142, 1098380), (284, 549190), (355, 439352), (568, 274595), (710, 219676), (1420, 109838), (2840, 54919)]