31077680

素因数分解:

$2^4\times 5^1\times {\mathrm{388471}}^1$

素因数の和:388484

約数の個数: 20

約数和(自身を含む): 72255792

約数和(自身を除く): 41178112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 388471, 776942, 1553884, 1942355, 3107768, 3884710, 6215536, 7769420, 15538840, 31077680]

約数ペア:

[(1, 31077680), (2, 15538840), (4, 7769420), (5, 6215536), (8, 3884710), (10, 3107768), (16, 1942355), (20, 1553884), (40, 776942), (80, 388471)]