1818740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1181}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 4765824

約数和(自身を除く): 2947084

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1181, 1540, 2362, 4724, 5905, 8267, 11810, 12991, 16534, 23620, 25982, 33068, 41335, 51964, 64955, 82670, 90937, 129910, 165340, 181874, 259820, 363748, 454685, 909370, 1818740]

約数ペア:

[(1, 1818740), (2, 909370), (4, 454685), (5, 363748), (7, 259820), (10, 181874), (11, 165340), (14, 129910), (20, 90937), (22, 82670), (28, 64955), (35, 51964), (44, 41335), (55, 33068), (70, 25982), (77, 23620), (110, 16534), (140, 12991), (154, 11810), (220, 8267), (308, 5905), (385, 4724), (770, 2362), (1181, 1540)]