20323260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4909}}^1$

素因数の和:4947

約数の個数: 72

約数和(自身を含む): 64340640

約数和(自身を除く): 44017380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4909, 9818, 14727, 19636, 24545, 29454, 44181, 49090, 58908, 73635, 88362, 98180, 112907, 147270, 176724, 220905, 225814, 294540, 338721, 441810, 451628, 564535, 677442, 883620, 1016163, 1129070, 1354884, 1693605, 2032326, 2258140, 3387210, 4064652, 5080815, 6774420, 10161630, 20323260]

約数ペア:

[(1, 20323260), (2, 10161630), (3, 6774420), (4, 5080815), (5, 4064652), (6, 3387210), (9, 2258140), (10, 2032326), (12, 1693605), (15, 1354884), (18, 1129070), (20, 1016163), (23, 883620), (30, 677442), (36, 564535), (45, 451628), (46, 441810), (60, 338721), (69, 294540), (90, 225814), (92, 220905), (115, 176724), (138, 147270), (180, 112907), (207, 98180), (230, 88362), (276, 73635), (345, 58908), (414, 49090), (460, 44181), (690, 29454), (828, 24545), (1035, 19636), (1380, 14727), (2070, 9818), (4140, 4909)]