77690960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31327}}^1$

素因数の和:31371

約数の個数: 40

約数和(自身を含む): 186464256

約数和(自身を除く): 108773296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 31327, 62654, 125308, 156635, 250616, 313270, 501232, 626540, 971137, 1253080, 1942274, 2506160, 3884548, 4855685, 7769096, 9711370, 15538192, 19422740, 38845480, 77690960]

約数ペア:

[(1, 77690960), (2, 38845480), (4, 19422740), (5, 15538192), (8, 9711370), (10, 7769096), (16, 4855685), (20, 3884548), (31, 2506160), (40, 1942274), (62, 1253080), (80, 971137), (124, 626540), (155, 501232), (248, 313270), (310, 250616), (496, 156635), (620, 125308), (1240, 62654), (2480, 31327)]