80779880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{54581}}^1$

素因数の和:54629

約数の個数: 32

約数和(自身を含む): 186670440

約数和(自身を除く): 105890560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 54581, 109162, 218324, 272905, 436648, 545810, 1091620, 2019497, 2183240, 4038994, 8077988, 10097485, 16155976, 20194970, 40389940, 80779880]

約数ペア:

[(1, 80779880), (2, 40389940), (4, 20194970), (5, 16155976), (8, 10097485), (10, 8077988), (20, 4038994), (37, 2183240), (40, 2019497), (74, 1091620), (148, 545810), (185, 436648), (296, 272905), (370, 218324), (740, 109162), (1480, 54581)]