128661320

素因数分解:

$2^3\times 5^1\times {\mathrm{751}}^1\times {\mathrm{4283}}^1$

素因数の和:5045

約数の個数: 32

約数和(自身を含む): 289941120

約数和(自身を除く): 161279800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 751, 1502, 3004, 3755, 4283, 6008, 7510, 8566, 15020, 17132, 21415, 30040, 34264, 42830, 85660, 171320, 3216533, 6433066, 12866132, 16082665, 25732264, 32165330, 64330660, 128661320]

約数ペア:

[(1, 128661320), (2, 64330660), (4, 32165330), (5, 25732264), (8, 16082665), (10, 12866132), (20, 6433066), (40, 3216533), (751, 171320), (1502, 85660), (3004, 42830), (3755, 34264), (4283, 30040), (6008, 21415), (7510, 17132), (8566, 15020)]