81395208

素因数分解:

$2^3\times 3^2\times {\mathrm{509}}^1\times {\mathrm{2221}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 220977900

約数和(自身を除く): 139582692

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 509, 1018, 1527, 2036, 2221, 3054, 4072, 4442, 4581, 6108, 6663, 8884, 9162, 12216, 13326, 17768, 18324, 19989, 26652, 36648, 39978, 53304, 79956, 159912, 1130489, 2260978, 3391467, 4521956, 6782934, 9043912, 10174401, 13565868, 20348802, 27131736, 40697604, 81395208]

約数ペア:

[(1, 81395208), (2, 40697604), (3, 27131736), (4, 20348802), (6, 13565868), (8, 10174401), (9, 9043912), (12, 6782934), (18, 4521956), (24, 3391467), (36, 2260978), (72, 1130489), (509, 159912), (1018, 79956), (1527, 53304), (2036, 39978), (2221, 36648), (3054, 26652), (4072, 19989), (4442, 18324), (4581, 17768), (6108, 13326), (6663, 12216), (8884, 9162)]