51663760

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{977}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 120423096

約数和(自身を除く): 68759336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 977, 1322, 1954, 2644, 3305, 3908, 4885, 5288, 6610, 7816, 9770, 10576, 13220, 15632, 19540, 26440, 39080, 52880, 78160, 645797, 1291594, 2583188, 3228985, 5166376, 6457970, 10332752, 12915940, 25831880, 51663760]

約数ペア:

[(1, 51663760), (2, 25831880), (4, 12915940), (5, 10332752), (8, 6457970), (10, 5166376), (16, 3228985), (20, 2583188), (40, 1291594), (80, 645797), (661, 78160), (977, 52880), (1322, 39080), (1954, 26440), (2644, 19540), (3305, 15632), (3908, 13220), (4885, 10576), (5288, 9770), (6610, 7816)]