85801720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 223560000

約数和(自身を除く): 137758280

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 29, 34, 38, 40, 58, 68, 76, 85, 95, 116, 136, 145, 152, 170, 190, 229, 232, 290, 323, 340, 380, 458, 493, 551, 580, 646, 680, 760, 916, 986, 1102, 1145, 1160, 1292, 1615, 1832, 1972, 2204, 2290, 2465, 2584, 2755, 3230, 3893, 3944, 4351, 4408, 4580, 4930, 5510, 6460, 6641, 7786, 8702, 9160, 9367, 9860, 11020, 12920, 13282, 15572, 17404, 18734, 19465, 19720, 21755, 22040, 26564, 31144, 33205, 34808, 37468, 38930, 43510, 46835, 53128, 66410, 73967, 74936, 77860, 87020, 93670, 112897, 126179, 132820, 147934, 155720, 174040, 187340, 225794, 252358, 265640, 295868, 369835, 374680, 451588, 504716, 564485, 591736, 630895, 739670, 903176, 1009432, 1128970, 1261790, 1479340, 2145043, 2257940, 2523580, 2958680, 4290086, 4515880, 5047160, 8580172, 10725215, 17160344, 21450430, 42900860, 85801720]

約数ペア:

[(1, 85801720), (2, 42900860), (4, 21450430), (5, 17160344), (8, 10725215), (10, 8580172), (17, 5047160), (19, 4515880), (20, 4290086), (29, 2958680), (34, 2523580), (38, 2257940), (40, 2145043), (58, 1479340), (68, 1261790), (76, 1128970), (85, 1009432), (95, 903176), (116, 739670), (136, 630895), (145, 591736), (152, 564485), (170, 504716), (190, 451588), (229, 374680), (232, 369835), (290, 295868), (323, 265640), (340, 252358), (380, 225794), (458, 187340), (493, 174040), (551, 155720), (580, 147934), (646, 132820), (680, 126179), (760, 112897), (916, 93670), (986, 87020), (1102, 77860), (1145, 74936), (1160, 73967), (1292, 66410), (1615, 53128), (1832, 46835), (1972, 43510), (2204, 38930), (2290, 37468), (2465, 34808), (2584, 33205), (2755, 31144), (3230, 26564), (3893, 22040), (3944, 21755), (4351, 19720), (4408, 19465), (4580, 18734), (4930, 17404), (5510, 15572), (6460, 13282), (6641, 12920), (7786, 11020), (8702, 9860), (9160, 9367)]