128025200

素因数分解:

$2^4\times 5^2\times {\mathrm{320063}}^1$

素因数の和:320081

約数の個数: 30

約数和(自身を含む): 307581504

約数和(自身を除く): 179556304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320063, 640126, 1280252, 1600315, 2560504, 3200630, 5121008, 6401260, 8001575, 12802520, 16003150, 25605040, 32006300, 64012600, 128025200]

約数ペア:

[(1, 128025200), (2, 64012600), (4, 32006300), (5, 25605040), (8, 16003150), (10, 12802520), (16, 8001575), (20, 6401260), (25, 5121008), (40, 3200630), (50, 2560504), (80, 1600315), (100, 1280252), (200, 640126), (400, 320063)]