20169954520

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{63197}}^1$

素因数の和:63388

約数の個数: 64

約数和(自身を含む): 46412611200

約数和(自身を除く): 26242656680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 101, 158, 202, 316, 395, 404, 505, 632, 790, 808, 1010, 1580, 2020, 3160, 4040, 7979, 15958, 31916, 39895, 63197, 63832, 79790, 126394, 159580, 252788, 315985, 319160, 505576, 631970, 1263940, 2527880, 4992563, 6382897, 9985126, 12765794, 19970252, 24962815, 25531588, 31914485, 39940504, 49925630, 51063176, 63828970, 99851260, 127657940, 199702520, 255315880, 504248863, 1008497726, 2016995452, 2521244315, 4033990904, 5042488630, 10084977260, 20169954520]

約数ペア:

[(1, 20169954520), (2, 10084977260), (4, 5042488630), (5, 4033990904), (8, 2521244315), (10, 2016995452), (20, 1008497726), (40, 504248863), (79, 255315880), (101, 199702520), (158, 127657940), (202, 99851260), (316, 63828970), (395, 51063176), (404, 49925630), (505, 39940504), (632, 31914485), (790, 25531588), (808, 24962815), (1010, 19970252), (1580, 12765794), (2020, 9985126), (3160, 6382897), (4040, 4992563), (7979, 2527880), (15958, 1263940), (31916, 631970), (39895, 505576), (63197, 319160), (63832, 315985), (79790, 252788), (126394, 159580)]