25242640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16607}}^1$

素因数の和:16639

約数の個数: 40

約数和(自身を含む): 61781760

約数和(自身を除く): 36539120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 16607, 33214, 66428, 83035, 132856, 166070, 265712, 315533, 332140, 631066, 664280, 1262132, 1328560, 1577665, 2524264, 3155330, 5048528, 6310660, 12621320, 25242640]

約数ペア:

[(1, 25242640), (2, 12621320), (4, 6310660), (5, 5048528), (8, 3155330), (10, 2524264), (16, 1577665), (19, 1328560), (20, 1262132), (38, 664280), (40, 631066), (76, 332140), (80, 315533), (95, 265712), (152, 166070), (190, 132856), (304, 83035), (380, 66428), (760, 33214), (1520, 16607)]