161945200

素因数分解:

$2^4\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1613}}^1$

素因数の和:1882

約数の個数: 60

約数和(自身を含む): 390865608

約数和(自身を除く): 228920408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 251, 400, 502, 1004, 1255, 1613, 2008, 2510, 3226, 4016, 5020, 6275, 6452, 8065, 10040, 12550, 12904, 16130, 20080, 25100, 25808, 32260, 40325, 50200, 64520, 80650, 100400, 129040, 161300, 322600, 404863, 645200, 809726, 1619452, 2024315, 3238904, 4048630, 6477808, 8097260, 10121575, 16194520, 20243150, 32389040, 40486300, 80972600, 161945200]

約数ペア:

[(1, 161945200), (2, 80972600), (4, 40486300), (5, 32389040), (8, 20243150), (10, 16194520), (16, 10121575), (20, 8097260), (25, 6477808), (40, 4048630), (50, 3238904), (80, 2024315), (100, 1619452), (200, 809726), (251, 645200), (400, 404863), (502, 322600), (1004, 161300), (1255, 129040), (1613, 100400), (2008, 80650), (2510, 64520), (3226, 50200), (4016, 40325), (5020, 32260), (6275, 25808), (6452, 25100), (8065, 20080), (10040, 16130), (12550, 12904)]