31126000

素因数分解:

$2^4\times 5^3\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:299

約数の個数: 80

約数和(自身を含む): 76602240

約数和(自身を除く): 45476240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 158, 197, 200, 250, 316, 394, 395, 400, 500, 632, 788, 790, 985, 1000, 1264, 1576, 1580, 1970, 1975, 2000, 3152, 3160, 3940, 3950, 4925, 6320, 7880, 7900, 9850, 9875, 15563, 15760, 15800, 19700, 19750, 24625, 31126, 31600, 39400, 39500, 49250, 62252, 77815, 78800, 79000, 98500, 124504, 155630, 158000, 197000, 249008, 311260, 389075, 394000, 622520, 778150, 1245040, 1556300, 1945375, 3112600, 3890750, 6225200, 7781500, 15563000, 31126000]

約数ペア:

[(1, 31126000), (2, 15563000), (4, 7781500), (5, 6225200), (8, 3890750), (10, 3112600), (16, 1945375), (20, 1556300), (25, 1245040), (40, 778150), (50, 622520), (79, 394000), (80, 389075), (100, 311260), (125, 249008), (158, 197000), (197, 158000), (200, 155630), (250, 124504), (316, 98500), (394, 79000), (395, 78800), (400, 77815), (500, 62252), (632, 49250), (788, 39500), (790, 39400), (985, 31600), (1000, 31126), (1264, 24625), (1576, 19750), (1580, 19700), (1970, 15800), (1975, 15760), (2000, 15563), (3152, 9875), (3160, 9850), (3940, 7900), (3950, 7880), (4925, 6320)]