681710080

素因数分解:

$2^9\times 5^1\times {\mathrm{266293}}^1$

素因数の和:266316

約数の個数: 40

約数和(自身を含む): 1634512572

約数和(自身を除く): 952802492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 266293, 532586, 1065172, 1331465, 2130344, 2662930, 4260688, 5325860, 8521376, 10651720, 17042752, 21303440, 34085504, 42606880, 68171008, 85213760, 136342016, 170427520, 340855040, 681710080]

約数ペア:

[(1, 681710080), (2, 340855040), (4, 170427520), (5, 136342016), (8, 85213760), (10, 68171008), (16, 42606880), (20, 34085504), (32, 21303440), (40, 17042752), (64, 10651720), (80, 8521376), (128, 5325860), (160, 4260688), (256, 2662930), (320, 2130344), (512, 1331465), (640, 1065172), (1280, 532586), (2560, 266293)]