80798000

素因数分解:

$2^4\times 5^3\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 80

約数和(自身を含む): 198469440

約数和(自身を除く): 117671440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 125, 142, 200, 250, 284, 355, 400, 500, 568, 569, 710, 1000, 1136, 1138, 1420, 1775, 2000, 2276, 2840, 2845, 3550, 4552, 5680, 5690, 7100, 8875, 9104, 11380, 14200, 14225, 17750, 22760, 28400, 28450, 35500, 40399, 45520, 56900, 71000, 71125, 80798, 113800, 142000, 142250, 161596, 201995, 227600, 284500, 323192, 403990, 569000, 646384, 807980, 1009975, 1138000, 1615960, 2019950, 3231920, 4039900, 5049875, 8079800, 10099750, 16159600, 20199500, 40399000, 80798000]

約数ペア:

[(1, 80798000), (2, 40399000), (4, 20199500), (5, 16159600), (8, 10099750), (10, 8079800), (16, 5049875), (20, 4039900), (25, 3231920), (40, 2019950), (50, 1615960), (71, 1138000), (80, 1009975), (100, 807980), (125, 646384), (142, 569000), (200, 403990), (250, 323192), (284, 284500), (355, 227600), (400, 201995), (500, 161596), (568, 142250), (569, 142000), (710, 113800), (1000, 80798), (1136, 71125), (1138, 71000), (1420, 56900), (1775, 45520), (2000, 40399), (2276, 35500), (2840, 28450), (2845, 28400), (3550, 22760), (4552, 17750), (5680, 14225), (5690, 14200), (7100, 11380), (8875, 9104)]