81293040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4909}}^1$

素因数の和:4951

約数の個数: 120

約数和(自身を含む): 284937120

約数和(自身を除く): 203644080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 4909, 5520, 8280, 9818, 14727, 16560, 19636, 24545, 29454, 39272, 44181, 49090, 58908, 73635, 78544, 88362, 98180, 112907, 117816, 147270, 176724, 196360, 220905, 225814, 235632, 294540, 338721, 353448, 392720, 441810, 451628, 564535, 589080, 677442, 706896, 883620, 903256, 1016163, 1129070, 1178160, 1354884, 1693605, 1767240, 1806512, 2032326, 2258140, 2709768, 3387210, 3534480, 4064652, 4516280, 5080815, 5419536, 6774420, 8129304, 9032560, 10161630, 13548840, 16258608, 20323260, 27097680, 40646520, 81293040]

約数ペア:

[(1, 81293040), (2, 40646520), (3, 27097680), (4, 20323260), (5, 16258608), (6, 13548840), (8, 10161630), (9, 9032560), (10, 8129304), (12, 6774420), (15, 5419536), (16, 5080815), (18, 4516280), (20, 4064652), (23, 3534480), (24, 3387210), (30, 2709768), (36, 2258140), (40, 2032326), (45, 1806512), (46, 1767240), (48, 1693605), (60, 1354884), (69, 1178160), (72, 1129070), (80, 1016163), (90, 903256), (92, 883620), (115, 706896), (120, 677442), (138, 589080), (144, 564535), (180, 451628), (184, 441810), (207, 392720), (230, 353448), (240, 338721), (276, 294540), (345, 235632), (360, 225814), (368, 220905), (414, 196360), (460, 176724), (552, 147270), (690, 117816), (720, 112907), (828, 98180), (920, 88362), (1035, 78544), (1104, 73635), (1380, 58908), (1656, 49090), (1840, 44181), (2070, 39272), (2760, 29454), (3312, 24545), (4140, 19636), (4909, 16560), (5520, 14727), (8280, 9818)]