81981922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 152409600

約数和(自身を除く): 70427678

約数列:

[1, 2, 11, 17, 19, 22, 34, 38, 83, 139, 166, 187, 209, 278, 323, 374, 418, 646, 913, 1411, 1529, 1577, 1826, 2363, 2641, 2822, 3058, 3154, 3553, 4726, 5282, 7106, 11537, 15521, 17347, 23074, 25993, 26809, 29051, 31042, 34694, 44897, 51986, 53618, 58102, 89794, 126907, 196129, 219203, 253814, 294899, 392258, 438406, 493867, 589798, 987734, 2157419, 2411233, 3726451, 4314838, 4822466, 7452902, 40990961, 81981922]

約数ペア:

[(1, 81981922), (2, 40990961), (11, 7452902), (17, 4822466), (19, 4314838), (22, 3726451), (34, 2411233), (38, 2157419), (83, 987734), (139, 589798), (166, 493867), (187, 438406), (209, 392258), (278, 294899), (323, 253814), (374, 219203), (418, 196129), (646, 126907), (913, 89794), (1411, 58102), (1529, 53618), (1577, 51986), (1826, 44897), (2363, 34694), (2641, 31042), (2822, 29051), (3058, 26809), (3154, 25993), (3553, 23074), (4726, 17347), (5282, 15521), (7106, 11537)]