128045200

素因数分解:

$2^4\times 5^2\times {\mathrm{320113}}^1$

素因数の和:320131

約数の個数: 30

約数和(自身を含む): 307629554

約数和(自身を除く): 179584354

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 320113, 640226, 1280452, 1600565, 2560904, 3201130, 5121808, 6402260, 8002825, 12804520, 16005650, 25609040, 32011300, 64022600, 128045200]

約数ペア:

[(1, 128045200), (2, 64022600), (4, 32011300), (5, 25609040), (8, 16005650), (10, 12804520), (16, 8002825), (20, 6402260), (25, 5121808), (40, 3201130), (50, 2560904), (80, 1600565), (100, 1280452), (200, 640226), (400, 320113)]