80415400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 203658840

約数和(自身を除く): 123243440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 157, 197, 200, 260, 314, 325, 394, 520, 628, 650, 785, 788, 985, 1256, 1300, 1570, 1576, 1970, 2041, 2561, 2600, 3140, 3925, 3940, 4082, 4925, 5122, 6280, 7850, 7880, 8164, 9850, 10205, 10244, 12805, 15700, 16328, 19700, 20410, 20488, 25610, 30929, 31400, 39400, 40820, 51025, 51220, 61858, 64025, 81640, 102050, 102440, 123716, 128050, 154645, 204100, 247432, 256100, 309290, 402077, 408200, 512200, 618580, 773225, 804154, 1237160, 1546450, 1608308, 2010385, 3092900, 3216616, 4020770, 6185800, 8041540, 10051925, 16083080, 20103850, 40207700, 80415400]

約数ペア:

[(1, 80415400), (2, 40207700), (4, 20103850), (5, 16083080), (8, 10051925), (10, 8041540), (13, 6185800), (20, 4020770), (25, 3216616), (26, 3092900), (40, 2010385), (50, 1608308), (52, 1546450), (65, 1237160), (100, 804154), (104, 773225), (130, 618580), (157, 512200), (197, 408200), (200, 402077), (260, 309290), (314, 256100), (325, 247432), (394, 204100), (520, 154645), (628, 128050), (650, 123716), (785, 102440), (788, 102050), (985, 81640), (1256, 64025), (1300, 61858), (1570, 51220), (1576, 51025), (1970, 40820), (2041, 39400), (2561, 31400), (2600, 30929), (3140, 25610), (3925, 20488), (3940, 20410), (4082, 19700), (4925, 16328), (5122, 15700), (6280, 12805), (7850, 10244), (7880, 10205), (8164, 9850)]