20109572

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 23073148

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 83, 119, 166, 238, 332, 476, 509, 581, 1018, 1162, 1411, 2036, 2324, 2822, 3563, 5644, 7126, 8653, 9877, 14252, 17306, 19754, 34612, 39508, 42247, 60571, 84494, 121142, 168988, 242284, 295729, 591458, 718199, 1182916, 1436398, 2872796, 5027393, 10054786, 20109572]

約数ペア:

[(1, 20109572), (2, 10054786), (4, 5027393), (7, 2872796), (14, 1436398), (17, 1182916), (28, 718199), (34, 591458), (68, 295729), (83, 242284), (119, 168988), (166, 121142), (238, 84494), (332, 60571), (476, 42247), (509, 39508), (581, 34612), (1018, 19754), (1162, 17306), (1411, 14252), (2036, 9877), (2324, 8653), (2822, 7126), (3563, 5644)]