18966860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1181}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 44083872

約数和(自身を除く): 25117012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1181, 1460, 1606, 2362, 3212, 4015, 4724, 5905, 8030, 11810, 12991, 16060, 23620, 25982, 51964, 64955, 86213, 129910, 172426, 259820, 344852, 431065, 862130, 948343, 1724260, 1896686, 3793372, 4741715, 9483430, 18966860]

約数ペア:

[(1, 18966860), (2, 9483430), (4, 4741715), (5, 3793372), (10, 1896686), (11, 1724260), (20, 948343), (22, 862130), (44, 431065), (55, 344852), (73, 259820), (110, 172426), (146, 129910), (220, 86213), (292, 64955), (365, 51964), (730, 25982), (803, 23620), (1181, 16060), (1460, 12991), (1606, 11810), (2362, 8030), (3212, 5905), (4015, 4724)]