40801420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{971}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 94058496

約数和(自身を除く): 53257076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 971, 1910, 1942, 2101, 3820, 3884, 4202, 4855, 8404, 9710, 10505, 10681, 19420, 21010, 21362, 42020, 42724, 53405, 106810, 185461, 213620, 370922, 741844, 927305, 1854610, 2040071, 3709220, 4080142, 8160284, 10200355, 20400710, 40801420]

約数ペア:

[(1, 40801420), (2, 20400710), (4, 10200355), (5, 8160284), (10, 4080142), (11, 3709220), (20, 2040071), (22, 1854610), (44, 927305), (55, 741844), (110, 370922), (191, 213620), (220, 185461), (382, 106810), (764, 53405), (955, 42724), (971, 42020), (1910, 21362), (1942, 21010), (2101, 19420), (3820, 10681), (3884, 10505), (4202, 9710), (4855, 8404)]