128770000

素因数分解:

$2^4\times 5^4\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:270

約数の個数: 100

約数和(自身を含む): 317648320

約数和(自身を除く): 188878320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 125, 158, 163, 200, 250, 316, 326, 395, 400, 500, 625, 632, 652, 790, 815, 1000, 1250, 1264, 1304, 1580, 1630, 1975, 2000, 2500, 2608, 3160, 3260, 3950, 4075, 5000, 6320, 6520, 7900, 8150, 9875, 10000, 12877, 13040, 15800, 16300, 19750, 20375, 25754, 31600, 32600, 39500, 40750, 49375, 51508, 64385, 65200, 79000, 81500, 98750, 101875, 103016, 128770, 158000, 163000, 197500, 203750, 206032, 257540, 321925, 326000, 395000, 407500, 515080, 643850, 790000, 815000, 1030160, 1287700, 1609625, 1630000, 2575400, 3219250, 5150800, 6438500, 8048125, 12877000, 16096250, 25754000, 32192500, 64385000, 128770000]

約数ペア:

[(1, 128770000), (2, 64385000), (4, 32192500), (5, 25754000), (8, 16096250), (10, 12877000), (16, 8048125), (20, 6438500), (25, 5150800), (40, 3219250), (50, 2575400), (79, 1630000), (80, 1609625), (100, 1287700), (125, 1030160), (158, 815000), (163, 790000), (200, 643850), (250, 515080), (316, 407500), (326, 395000), (395, 326000), (400, 321925), (500, 257540), (625, 206032), (632, 203750), (652, 197500), (790, 163000), (815, 158000), (1000, 128770), (1250, 103016), (1264, 101875), (1304, 98750), (1580, 81500), (1630, 79000), (1975, 65200), (2000, 64385), (2500, 51508), (2608, 49375), (3160, 40750), (3260, 39500), (3950, 32600), (4075, 31600), (5000, 25754), (6320, 20375), (6520, 19750), (7900, 16300), (8150, 15800), (9875, 13040), (10000, 12877)]