20174438320

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1\times {\mathrm{2447}}^1$

素因数の和:3118

約数の個数: 80

約数和(自身を含む): 47224798848

約数和(自身を除く): 27050360528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 401, 514, 802, 1028, 1285, 1604, 2005, 2056, 2447, 2570, 3208, 4010, 4112, 4894, 5140, 6416, 8020, 9788, 10280, 12235, 16040, 19576, 20560, 24470, 32080, 39152, 48940, 97880, 103057, 195760, 206114, 412228, 515285, 628879, 824456, 981247, 1030570, 1257758, 1648912, 1962494, 2061140, 2515516, 3144395, 3924988, 4122280, 4906235, 5031032, 6288790, 7849976, 8244560, 9812470, 10062064, 12577580, 15699952, 19624940, 25155160, 39249880, 50310320, 78499760, 252180479, 504360958, 1008721916, 1260902395, 2017443832, 2521804790, 4034887664, 5043609580, 10087219160, 20174438320]

約数ペア:

[(1, 20174438320), (2, 10087219160), (4, 5043609580), (5, 4034887664), (8, 2521804790), (10, 2017443832), (16, 1260902395), (20, 1008721916), (40, 504360958), (80, 252180479), (257, 78499760), (401, 50310320), (514, 39249880), (802, 25155160), (1028, 19624940), (1285, 15699952), (1604, 12577580), (2005, 10062064), (2056, 9812470), (2447, 8244560), (2570, 7849976), (3208, 6288790), (4010, 5031032), (4112, 4906235), (4894, 4122280), (5140, 3924988), (6416, 3144395), (8020, 2515516), (9788, 2061140), (10280, 1962494), (12235, 1648912), (16040, 1257758), (19576, 1030570), (20560, 981247), (24470, 824456), (32080, 628879), (39152, 515285), (48940, 412228), (97880, 206114), (103057, 195760)]