30800720

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2939}}^1$

素因数の和:3083

約数の個数: 40

約数和(自身を含む): 72182880

約数和(自身を除く): 41382160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 2939, 5240, 5878, 10480, 11756, 14695, 23512, 29390, 47024, 58780, 117560, 235120, 385009, 770018, 1540036, 1925045, 3080072, 3850090, 6160144, 7700180, 15400360, 30800720]

約数ペア:

[(1, 30800720), (2, 15400360), (4, 7700180), (5, 6160144), (8, 3850090), (10, 3080072), (16, 1925045), (20, 1540036), (40, 770018), (80, 385009), (131, 235120), (262, 117560), (524, 58780), (655, 47024), (1048, 29390), (1310, 23512), (2096, 14695), (2620, 11756), (2939, 10480), (5240, 5878)]