40023620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21991}}^1$

素因数の和:22020

約数の個数: 48

約数和(自身を含む): 103450368

約数和(自身を除く): 63426748

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21991, 43982, 87964, 109955, 153937, 219910, 285883, 307874, 439820, 571766, 615748, 769685, 1143532, 1429415, 1539370, 2001181, 2858830, 3078740, 4002362, 5717660, 8004724, 10005905, 20011810, 40023620]

約数ペア:

[(1, 40023620), (2, 20011810), (4, 10005905), (5, 8004724), (7, 5717660), (10, 4002362), (13, 3078740), (14, 2858830), (20, 2001181), (26, 1539370), (28, 1429415), (35, 1143532), (52, 769685), (65, 615748), (70, 571766), (91, 439820), (130, 307874), (140, 285883), (182, 219910), (260, 153937), (364, 109955), (455, 87964), (910, 43982), (1820, 21991)]