8129500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:319

約数の個数: 48

約数和(自身を含む): 18083520

約数和(自身を除く): 9954020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 229, 250, 284, 355, 458, 500, 710, 916, 1145, 1420, 1775, 2290, 3550, 4580, 5725, 7100, 8875, 11450, 16259, 17750, 22900, 28625, 32518, 35500, 57250, 65036, 81295, 114500, 162590, 325180, 406475, 812950, 1625900, 2032375, 4064750, 8129500]

約数ペア:

[(1, 8129500), (2, 4064750), (4, 2032375), (5, 1625900), (10, 812950), (20, 406475), (25, 325180), (50, 162590), (71, 114500), (100, 81295), (125, 65036), (142, 57250), (229, 35500), (250, 32518), (284, 28625), (355, 22900), (458, 17750), (500, 16259), (710, 11450), (916, 8875), (1145, 7100), (1420, 5725), (1775, 4580), (2290, 3550)]