20178390868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{45959}}^1$

素因数の和:46144

約数の個数: 48

約数和(自身を含む): 38220336000

約数和(自身を除く): 18041945132

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 109, 212, 218, 436, 1007, 2014, 2071, 4028, 4142, 5777, 8284, 11554, 23108, 45959, 91918, 109763, 183836, 219526, 439052, 873221, 1746442, 2435827, 3492884, 4871654, 5009531, 9743308, 10019062, 20038124, 46280713, 92561426, 95181089, 185122852, 190362178, 265505143, 380724356, 531010286, 1062020572, 5044597717, 10089195434, 20178390868]

約数ペア:

[(1, 20178390868), (2, 10089195434), (4, 5044597717), (19, 1062020572), (38, 531010286), (53, 380724356), (76, 265505143), (106, 190362178), (109, 185122852), (212, 95181089), (218, 92561426), (436, 46280713), (1007, 20038124), (2014, 10019062), (2071, 9743308), (4028, 5009531), (4142, 4871654), (5777, 3492884), (8284, 2435827), (11554, 1746442), (23108, 873221), (45959, 439052), (91918, 219526), (109763, 183836)]