40207700

素因数分解:

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

素因数の和:381

約数の個数: 72

約数和(自身を含む): 95040792

約数和(自身を除く): 54833092

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 157, 197, 260, 314, 325, 394, 628, 650, 785, 788, 985, 1300, 1570, 1970, 2041, 2561, 3140, 3925, 3940, 4082, 4925, 5122, 7850, 8164, 9850, 10205, 10244, 12805, 15700, 19700, 20410, 25610, 30929, 40820, 51025, 51220, 61858, 64025, 102050, 123716, 128050, 154645, 204100, 256100, 309290, 402077, 618580, 773225, 804154, 1546450, 1608308, 2010385, 3092900, 4020770, 8041540, 10051925, 20103850, 40207700]

約数ペア:

[(1, 40207700), (2, 20103850), (4, 10051925), (5, 8041540), (10, 4020770), (13, 3092900), (20, 2010385), (25, 1608308), (26, 1546450), (50, 804154), (52, 773225), (65, 618580), (100, 402077), (130, 309290), (157, 256100), (197, 204100), (260, 154645), (314, 128050), (325, 123716), (394, 102050), (628, 64025), (650, 61858), (785, 51220), (788, 51025), (985, 40820), (1300, 30929), (1570, 25610), (1970, 20410), (2041, 19700), (2561, 15700), (3140, 12805), (3925, 10244), (3940, 10205), (4082, 9850), (4925, 8164), (5122, 7850)]