80815040

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3557}}^1$

素因数の和:3645

約数の個数: 56

約数和(自身を含む): 195206112

約数和(自身を除く): 114391072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 3557, 4544, 5680, 7114, 11360, 14228, 17785, 22720, 28456, 35570, 56912, 71140, 113824, 142280, 227648, 252547, 284560, 505094, 569120, 1010188, 1138240, 1262735, 2020376, 2525470, 4040752, 5050940, 8081504, 10101880, 16163008, 20203760, 40407520, 80815040]

約数ペア:

[(1, 80815040), (2, 40407520), (4, 20203760), (5, 16163008), (8, 10101880), (10, 8081504), (16, 5050940), (20, 4040752), (32, 2525470), (40, 2020376), (64, 1262735), (71, 1138240), (80, 1010188), (142, 569120), (160, 505094), (284, 284560), (320, 252547), (355, 227648), (568, 142280), (710, 113824), (1136, 71140), (1420, 56912), (2272, 35570), (2840, 28456), (3557, 22720), (4544, 17785), (5680, 14228), (7114, 11360)]