61815440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10883}}^1$

素因数の和:10967

約数の個数: 40

約数和(自身を含む): 145758528

約数和(自身を除く): 83943088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 10883, 21766, 43532, 54415, 87064, 108830, 174128, 217660, 435320, 772693, 870640, 1545386, 3090772, 3863465, 6181544, 7726930, 12363088, 15453860, 30907720, 61815440]

約数ペア:

[(1, 61815440), (2, 30907720), (4, 15453860), (5, 12363088), (8, 7726930), (10, 6181544), (16, 3863465), (20, 3090772), (40, 1545386), (71, 870640), (80, 772693), (142, 435320), (284, 217660), (355, 174128), (568, 108830), (710, 87064), (1136, 54415), (1420, 43532), (2840, 21766), (5680, 10883)]