28679580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1163}}^1$

素因数の和:1315

約数の個数: 72

約数和(自身を含む): 87705072

約数和(自身を除く): 59025492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 1163, 1233, 1370, 1644, 2055, 2326, 2466, 2740, 3489, 4110, 4652, 4932, 5815, 6165, 6978, 8220, 10467, 11630, 12330, 13956, 17445, 20934, 23260, 24660, 34890, 41868, 52335, 69780, 104670, 159331, 209340, 318662, 477993, 637324, 796655, 955986, 1433979, 1593310, 1911972, 2389965, 2867958, 3186620, 4779930, 5735916, 7169895, 9559860, 14339790, 28679580]

約数ペア:

[(1, 28679580), (2, 14339790), (3, 9559860), (4, 7169895), (5, 5735916), (6, 4779930), (9, 3186620), (10, 2867958), (12, 2389965), (15, 1911972), (18, 1593310), (20, 1433979), (30, 955986), (36, 796655), (45, 637324), (60, 477993), (90, 318662), (137, 209340), (180, 159331), (274, 104670), (411, 69780), (548, 52335), (685, 41868), (822, 34890), (1163, 24660), (1233, 23260), (1370, 20934), (1644, 17445), (2055, 13956), (2326, 12330), (2466, 11630), (2740, 10467), (3489, 8220), (4110, 6978), (4652, 6165), (4932, 5815)]