4067440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3911}}^1$

素因数の和:3937

約数の個数: 40

約数和(自身を含む): 10186848

約数和(自身を除く): 6119408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3911, 7822, 15644, 19555, 31288, 39110, 50843, 62576, 78220, 101686, 156440, 203372, 254215, 312880, 406744, 508430, 813488, 1016860, 2033720, 4067440]

約数ペア:

[(1, 4067440), (2, 2033720), (4, 1016860), (5, 813488), (8, 508430), (10, 406744), (13, 312880), (16, 254215), (20, 203372), (26, 156440), (40, 101686), (52, 78220), (65, 62576), (80, 50843), (104, 39110), (130, 31288), (208, 19555), (260, 15644), (520, 7822), (1040, 3911)]