20956457588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{80603}}^1$

素因数の和:80948

約数の個数: 48

約数和(自身を含む): 42249392640

約数和(自身を除く): 21292935052

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 311, 418, 622, 836, 1244, 3421, 5909, 6842, 11818, 13684, 23636, 64999, 80603, 129998, 161206, 259996, 322412, 886633, 1531457, 1773266, 3062914, 3546532, 6125828, 16846027, 25067533, 33692054, 50135066, 67384108, 100270132, 275742863, 476283127, 551485726, 952566254, 1102971452, 1905132508, 5239114397, 10478228794, 20956457588]

約数ペア:

[(1, 20956457588), (2, 10478228794), (4, 5239114397), (11, 1905132508), (19, 1102971452), (22, 952566254), (38, 551485726), (44, 476283127), (76, 275742863), (209, 100270132), (311, 67384108), (418, 50135066), (622, 33692054), (836, 25067533), (1244, 16846027), (3421, 6125828), (5909, 3546532), (6842, 3062914), (11818, 1773266), (13684, 1531457), (23636, 886633), (64999, 322412), (80603, 259996), (129998, 161206)]