51245200

素因数分解:

$2^4\times 5^2\times {\mathrm{128113}}^1$

素因数の和:128131

約数の個数: 30

約数和(自身を含む): 123117554

約数和(自身を除く): 71872354

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128113, 256226, 512452, 640565, 1024904, 1281130, 2049808, 2562260, 3202825, 5124520, 6405650, 10249040, 12811300, 25622600, 51245200]

約数ペア:

[(1, 51245200), (2, 25622600), (4, 12811300), (5, 10249040), (8, 6405650), (10, 5124520), (16, 3202825), (20, 2562260), (25, 2049808), (40, 1281130), (50, 1024904), (80, 640565), (100, 512452), (200, 256226), (400, 128113)]