39650780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11731}}^1$

素因数の和:11766

約数の個数: 36

約数和(自身を含む): 90172152

約数和(自身を除く): 50521372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 11731, 23462, 46924, 58655, 117310, 152503, 234620, 305006, 610012, 762515, 1525030, 1982539, 3050060, 3965078, 7930156, 9912695, 19825390, 39650780]

約数ペア:

[(1, 39650780), (2, 19825390), (4, 9912695), (5, 7930156), (10, 3965078), (13, 3050060), (20, 1982539), (26, 1525030), (52, 762515), (65, 610012), (130, 305006), (169, 234620), (260, 152503), (338, 117310), (676, 58655), (845, 46924), (1690, 23462), (3380, 11731)]