38907500

素因数分解:

$2^2\times 5^4\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:300

約数の個数: 60

約数和(自身を含む): 86597280

約数和(自身を除く): 47689780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 197, 250, 316, 394, 395, 500, 625, 788, 790, 985, 1250, 1580, 1970, 1975, 2500, 3940, 3950, 4925, 7900, 9850, 9875, 15563, 19700, 19750, 24625, 31126, 39500, 49250, 49375, 62252, 77815, 98500, 98750, 123125, 155630, 197500, 246250, 311260, 389075, 492500, 778150, 1556300, 1945375, 3890750, 7781500, 9726875, 19453750, 38907500]

約数ペア:

[(1, 38907500), (2, 19453750), (4, 9726875), (5, 7781500), (10, 3890750), (20, 1945375), (25, 1556300), (50, 778150), (79, 492500), (100, 389075), (125, 311260), (158, 246250), (197, 197500), (250, 155630), (316, 123125), (394, 98750), (395, 98500), (500, 77815), (625, 62252), (788, 49375), (790, 49250), (985, 39500), (1250, 31126), (1580, 24625), (1970, 19750), (1975, 19700), (2500, 15563), (3940, 9875), (3950, 9850), (4925, 7900)]