20178532340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{2213}}^1$

素因数の和:2529

約数の個数: 96

約数和(自身を含む): 44634240000

約数和(自身を除く): 24455707660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 199, 290, 316, 395, 398, 580, 790, 796, 995, 1580, 1990, 2213, 2291, 3980, 4426, 4582, 5771, 8852, 9164, 11065, 11455, 11542, 15721, 22130, 22910, 23084, 28855, 31442, 44260, 45820, 57710, 62884, 64177, 78605, 115420, 128354, 157210, 174827, 256708, 314420, 320885, 349654, 440387, 455909, 641770, 699308, 874135, 880774, 911818, 1283540, 1748270, 1761548, 1823636, 2201935, 2279545, 3496540, 4403870, 4559090, 5069983, 8807740, 9118180, 10139966, 12771223, 20279932, 25349915, 25542446, 34790573, 50699830, 51084892, 63856115, 69581146, 101399660, 127712230, 139162292, 173952865, 255424460, 347905730, 695811460, 1008926617, 2017853234, 4035706468, 5044633085, 10089266170, 20178532340]

約数ペア:

[(1, 20178532340), (2, 10089266170), (4, 5044633085), (5, 4035706468), (10, 2017853234), (20, 1008926617), (29, 695811460), (58, 347905730), (79, 255424460), (116, 173952865), (145, 139162292), (158, 127712230), (199, 101399660), (290, 69581146), (316, 63856115), (395, 51084892), (398, 50699830), (580, 34790573), (790, 25542446), (796, 25349915), (995, 20279932), (1580, 12771223), (1990, 10139966), (2213, 9118180), (2291, 8807740), (3980, 5069983), (4426, 4559090), (4582, 4403870), (5771, 3496540), (8852, 2279545), (9164, 2201935), (11065, 1823636), (11455, 1761548), (11542, 1748270), (15721, 1283540), (22130, 911818), (22910, 880774), (23084, 874135), (28855, 699308), (31442, 641770), (44260, 455909), (45820, 440387), (57710, 349654), (62884, 320885), (64177, 314420), (78605, 256708), (115420, 174827), (128354, 157210)]