20194272040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8276341}}^1$

素因数の和:8276413

約数の個数: 32

約数和(自身を含む): 46181988360

約数和(自身を除く): 25987716320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8276341, 16552682, 33105364, 41381705, 66210728, 82763410, 165526820, 331053640, 504856801, 1009713602, 2019427204, 2524284005, 4038854408, 5048568010, 10097136020, 20194272040]

約数ペア:

[(1, 20194272040), (2, 10097136020), (4, 5048568010), (5, 4038854408), (8, 2524284005), (10, 2019427204), (20, 1009713602), (40, 504856801), (61, 331053640), (122, 165526820), (244, 82763410), (305, 66210728), (488, 41381705), (610, 33105364), (1220, 16552682), (2440, 8276341)]