80891440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 160

約数和(自身を含む): 236234880

約数和(自身を除く): 155343440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 29, 34, 35, 40, 56, 58, 68, 70, 80, 85, 112, 116, 119, 136, 140, 145, 170, 203, 232, 238, 272, 280, 290, 293, 340, 406, 464, 476, 493, 560, 580, 586, 595, 680, 812, 952, 986, 1015, 1160, 1172, 1190, 1360, 1465, 1624, 1904, 1972, 2030, 2051, 2320, 2344, 2380, 2465, 2930, 3248, 3451, 3944, 4060, 4102, 4688, 4760, 4930, 4981, 5860, 6902, 7888, 8120, 8204, 8497, 9520, 9860, 9962, 10255, 11720, 13804, 16240, 16408, 16994, 17255, 19720, 19924, 20510, 23440, 24905, 27608, 32816, 33988, 34510, 34867, 39440, 39848, 41020, 42485, 49810, 55216, 59479, 67976, 69020, 69734, 79696, 82040, 84970, 99620, 118958, 135952, 138040, 139468, 144449, 164080, 169940, 174335, 199240, 237916, 276080, 278936, 288898, 297395, 339880, 348670, 398480, 475832, 557872, 577796, 594790, 679760, 697340, 722245, 951664, 1011143, 1155592, 1189580, 1394680, 1444490, 2022286, 2311184, 2379160, 2789360, 2888980, 4044572, 4758320, 5055715, 5777960, 8089144, 10111430, 11555920, 16178288, 20222860, 40445720, 80891440]

約数ペア:

[(1, 80891440), (2, 40445720), (4, 20222860), (5, 16178288), (7, 11555920), (8, 10111430), (10, 8089144), (14, 5777960), (16, 5055715), (17, 4758320), (20, 4044572), (28, 2888980), (29, 2789360), (34, 2379160), (35, 2311184), (40, 2022286), (56, 1444490), (58, 1394680), (68, 1189580), (70, 1155592), (80, 1011143), (85, 951664), (112, 722245), (116, 697340), (119, 679760), (136, 594790), (140, 577796), (145, 557872), (170, 475832), (203, 398480), (232, 348670), (238, 339880), (272, 297395), (280, 288898), (290, 278936), (293, 276080), (340, 237916), (406, 199240), (464, 174335), (476, 169940), (493, 164080), (560, 144449), (580, 139468), (586, 138040), (595, 135952), (680, 118958), (812, 99620), (952, 84970), (986, 82040), (1015, 79696), (1160, 69734), (1172, 69020), (1190, 67976), (1360, 59479), (1465, 55216), (1624, 49810), (1904, 42485), (1972, 41020), (2030, 39848), (2051, 39440), (2320, 34867), (2344, 34510), (2380, 33988), (2465, 32816), (2930, 27608), (3248, 24905), (3451, 23440), (3944, 20510), (4060, 19924), (4102, 19720), (4688, 17255), (4760, 16994), (4930, 16408), (4981, 16240), (5860, 13804), (6902, 11720), (7888, 10255), (8120, 9962), (8204, 9860), (8497, 9520)]