781310080

素因数分解:

$2^7\times 5^1\times {\mathrm{1220797}}^1$

素因数の和:1220816

約数の個数: 32

約数和(自身を含む): 1867820940

約数和(自身を除く): 1086510860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 1220797, 2441594, 4883188, 6103985, 9766376, 12207970, 19532752, 24415940, 39065504, 48831880, 78131008, 97663760, 156262016, 195327520, 390655040, 781310080]

約数ペア:

[(1, 781310080), (2, 390655040), (4, 195327520), (5, 156262016), (8, 97663760), (10, 78131008), (16, 48831880), (20, 39065504), (32, 24415940), (40, 19532752), (64, 12207970), (80, 9766376), (128, 6103985), (160, 4883188), (320, 2441594), (640, 1220797)]