78210520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{63073}}^1$

素因数の和:63115

約数の個数: 32

約数和(自身を含む): 181653120

約数和(自身を除く): 103442600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 63073, 126146, 252292, 315365, 504584, 630730, 1261460, 1955263, 2522920, 3910526, 7821052, 9776315, 15642104, 19552630, 39105260, 78210520]

約数ペア:

[(1, 78210520), (2, 39105260), (4, 19552630), (5, 15642104), (8, 9776315), (10, 7821052), (20, 3910526), (31, 2522920), (40, 1955263), (62, 1261460), (124, 630730), (155, 504584), (248, 315365), (310, 252292), (620, 126146), (1240, 63073)]