40647500

素因数分解:

$2^2\times 5^4\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:324

約数の個数: 60

約数和(自身を含む): 90533520

約数和(自身を除く): 49886020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 229, 250, 284, 355, 458, 500, 625, 710, 916, 1145, 1250, 1420, 1775, 2290, 2500, 3550, 4580, 5725, 7100, 8875, 11450, 16259, 17750, 22900, 28625, 32518, 35500, 44375, 57250, 65036, 81295, 88750, 114500, 143125, 162590, 177500, 286250, 325180, 406475, 572500, 812950, 1625900, 2032375, 4064750, 8129500, 10161875, 20323750, 40647500]

約数ペア:

[(1, 40647500), (2, 20323750), (4, 10161875), (5, 8129500), (10, 4064750), (20, 2032375), (25, 1625900), (50, 812950), (71, 572500), (100, 406475), (125, 325180), (142, 286250), (229, 177500), (250, 162590), (284, 143125), (355, 114500), (458, 88750), (500, 81295), (625, 65036), (710, 57250), (916, 44375), (1145, 35500), (1250, 32518), (1420, 28625), (1775, 22900), (2290, 17750), (2500, 16259), (3550, 11450), (4580, 8875), (5725, 7100)]