128085200

素因数分解:

$2^4\times 5^2\times {\mathrm{320213}}^1$

素因数の和:320231

約数の個数: 30

約数和(自身を含む): 307725654

約数和(自身を除く): 179640454

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320213, 640426, 1280852, 1601065, 2561704, 3202130, 5123408, 6404260, 8005325, 12808520, 16010650, 25617040, 32021300, 64042600, 128085200]

約数ペア:

[(1, 128085200), (2, 64042600), (4, 32021300), (5, 25617040), (8, 16010650), (10, 12808520), (16, 8005325), (20, 6404260), (25, 5123408), (40, 3202130), (50, 2561704), (80, 1601065), (100, 1280852), (200, 640426), (400, 320213)]