1285993880

素因数分解:

$2^3\times 5^1\times {\mathrm{3257}}^1\times {\mathrm{9871}}^1$

素因数の和:13139

約数の個数: 32

約数和(自身を含む): 2894667840

約数和(自身を除く): 1608673960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3257, 6514, 9871, 13028, 16285, 19742, 26056, 32570, 39484, 49355, 65140, 78968, 98710, 130280, 197420, 394840, 32149847, 64299694, 128599388, 160749235, 257198776, 321498470, 642996940, 1285993880]

約数ペア:

[(1, 1285993880), (2, 642996940), (4, 321498470), (5, 257198776), (8, 160749235), (10, 128599388), (20, 64299694), (40, 32149847), (3257, 394840), (6514, 197420), (9871, 130280), (13028, 98710), (16285, 78968), (19742, 65140), (26056, 49355), (32570, 39484)]