20090730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2691

約数の個数: 64

約数和(自身を含む): 54908928

約数和(自身を除く): 34818198

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2647, 3795, 5294, 7590, 7941, 13235, 15882, 26470, 29117, 39705, 58234, 60881, 79410, 87351, 121762, 145585, 174702, 182643, 291170, 304405, 365286, 436755, 608810, 669691, 873510, 913215, 1339382, 1826430, 2009073, 3348455, 4018146, 6696910, 10045365, 20090730]

約数ペア:

[(1, 20090730), (2, 10045365), (3, 6696910), (5, 4018146), (6, 3348455), (10, 2009073), (11, 1826430), (15, 1339382), (22, 913215), (23, 873510), (30, 669691), (33, 608810), (46, 436755), (55, 365286), (66, 304405), (69, 291170), (110, 182643), (115, 174702), (138, 145585), (165, 121762), (230, 87351), (253, 79410), (330, 60881), (345, 58234), (506, 39705), (690, 29117), (759, 26470), (1265, 15882), (1518, 13235), (2530, 7941), (2647, 7590), (3795, 5294)]