2081721100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{2609}}^1$

素因数の和:2803

約数の個数: 72

約数和(自身を含む): 4621579200

約数和(自身を除く): 2539858100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 101, 158, 202, 316, 395, 404, 505, 790, 1010, 1580, 1975, 2020, 2525, 2609, 3950, 5050, 5218, 7900, 7979, 10100, 10436, 13045, 15958, 26090, 31916, 39895, 52180, 65225, 79790, 130450, 159580, 199475, 206111, 260900, 263509, 398950, 412222, 527018, 797900, 824444, 1030555, 1054036, 1317545, 2061110, 2635090, 4122220, 5152775, 5270180, 6587725, 10305550, 13175450, 20611100, 20817211, 26350900, 41634422, 83268844, 104086055, 208172110, 416344220, 520430275, 1040860550, 2081721100]

約数ペア:

[(1, 2081721100), (2, 1040860550), (4, 520430275), (5, 416344220), (10, 208172110), (20, 104086055), (25, 83268844), (50, 41634422), (79, 26350900), (100, 20817211), (101, 20611100), (158, 13175450), (202, 10305550), (316, 6587725), (395, 5270180), (404, 5152775), (505, 4122220), (790, 2635090), (1010, 2061110), (1580, 1317545), (1975, 1054036), (2020, 1030555), (2525, 824444), (2609, 797900), (3950, 527018), (5050, 412222), (5218, 398950), (7900, 263509), (7979, 260900), (10100, 206111), (10436, 199475), (13045, 159580), (15958, 130450), (26090, 79790), (31916, 65225), (39895, 52180)]