20840688

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 44155152

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 59, 66, 72, 88, 99, 118, 132, 144, 176, 177, 198, 223, 236, 264, 354, 396, 446, 472, 528, 531, 649, 669, 708, 792, 892, 944, 1062, 1298, 1338, 1416, 1584, 1784, 1947, 2007, 2124, 2453, 2596, 2676, 2832, 3568, 3894, 4014, 4248, 4906, 5192, 5352, 5841, 7359, 7788, 8028, 8496, 9812, 10384, 10704, 11682, 13157, 14718, 15576, 16056, 19624, 22077, 23364, 26314, 29436, 31152, 32112, 39248, 39471, 44154, 46728, 52628, 58872, 78942, 88308, 93456, 105256, 117744, 118413, 144727, 157884, 176616, 210512, 236826, 289454, 315768, 353232, 434181, 473652, 578908, 631536, 868362, 947304, 1157816, 1302543, 1736724, 1894608, 2315632, 2605086, 3473448, 5210172, 6946896, 10420344, 20840688]

約数ペア:

[(1, 20840688), (2, 10420344), (3, 6946896), (4, 5210172), (6, 3473448), (8, 2605086), (9, 2315632), (11, 1894608), (12, 1736724), (16, 1302543), (18, 1157816), (22, 947304), (24, 868362), (33, 631536), (36, 578908), (44, 473652), (48, 434181), (59, 353232), (66, 315768), (72, 289454), (88, 236826), (99, 210512), (118, 176616), (132, 157884), (144, 144727), (176, 118413), (177, 117744), (198, 105256), (223, 93456), (236, 88308), (264, 78942), (354, 58872), (396, 52628), (446, 46728), (472, 44154), (528, 39471), (531, 39248), (649, 32112), (669, 31152), (708, 29436), (792, 26314), (892, 23364), (944, 22077), (1062, 19624), (1298, 16056), (1338, 15576), (1416, 14718), (1584, 13157), (1784, 11682), (1947, 10704), (2007, 10384), (2124, 9812), (2453, 8496), (2596, 8028), (2676, 7788), (2832, 7359), (3568, 5841), (3894, 5352), (4014, 5192), (4248, 4906)]