64891980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{360511}}^1$

素因数の和:360526

約数の個数: 36

約数和(自身を含む): 196839552

約数和(自身を除く): 131947572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 360511, 721022, 1081533, 1442044, 1802555, 2163066, 3244599, 3605110, 4326132, 5407665, 6489198, 7210220, 10815330, 12978396, 16222995, 21630660, 32445990, 64891980]

約数ペア:

[(1, 64891980), (2, 32445990), (3, 21630660), (4, 16222995), (5, 12978396), (6, 10815330), (9, 7210220), (10, 6489198), (12, 5407665), (15, 4326132), (18, 3605110), (20, 3244599), (30, 2163066), (36, 1802555), (45, 1442044), (60, 1081533), (90, 721022), (180, 360511)]