65649680

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{9887}}^1$

素因数の和:9983

約数の個数: 40

約数和(自身を含む): 154490112

約数和(自身を除く): 88840432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 9887, 19774, 39548, 49435, 79096, 98870, 158192, 197740, 395480, 790960, 820621, 1641242, 3282484, 4103105, 6564968, 8206210, 13129936, 16412420, 32824840, 65649680]

約数ペア:

[(1, 65649680), (2, 32824840), (4, 16412420), (5, 13129936), (8, 8206210), (10, 6564968), (16, 4103105), (20, 3282484), (40, 1641242), (80, 820621), (83, 790960), (166, 395480), (332, 197740), (415, 158192), (664, 98870), (830, 79096), (1328, 49435), (1660, 39548), (3320, 19774), (6640, 9887)]