81951738

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{911}}^1$

素因数の和:1003

約数の個数: 64

約数和(自身を含む): 189112320

約数和(自身を除く): 107160582

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 47, 58, 66, 87, 94, 141, 174, 282, 319, 517, 638, 911, 957, 1034, 1363, 1551, 1822, 1914, 2726, 2733, 3102, 4089, 5466, 8178, 10021, 14993, 20042, 26419, 29986, 30063, 42817, 44979, 52838, 60126, 79257, 85634, 89958, 128451, 158514, 256902, 290609, 470987, 581218, 871827, 941974, 1241693, 1412961, 1743654, 2483386, 2825922, 3725079, 7450158, 13658623, 27317246, 40975869, 81951738]

約数ペア:

[(1, 81951738), (2, 40975869), (3, 27317246), (6, 13658623), (11, 7450158), (22, 3725079), (29, 2825922), (33, 2483386), (47, 1743654), (58, 1412961), (66, 1241693), (87, 941974), (94, 871827), (141, 581218), (174, 470987), (282, 290609), (319, 256902), (517, 158514), (638, 128451), (911, 89958), (957, 85634), (1034, 79257), (1363, 60126), (1551, 52838), (1822, 44979), (1914, 42817), (2726, 30063), (2733, 29986), (3102, 26419), (4089, 20042), (5466, 14993), (8178, 10021)]