91188520

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4643}}^1$

素因数の和:5145

約数の個数: 32

約数和(自身を含む): 205636320

約数和(自身を除く): 114447800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4643, 4910, 9286, 9820, 18572, 19640, 23215, 37144, 46430, 92860, 185720, 2279713, 4559426, 9118852, 11398565, 18237704, 22797130, 45594260, 91188520]

約数ペア:

[(1, 91188520), (2, 45594260), (4, 22797130), (5, 18237704), (8, 11398565), (10, 9118852), (20, 4559426), (40, 2279713), (491, 185720), (982, 92860), (1964, 46430), (2455, 37144), (3928, 23215), (4643, 19640), (4910, 18572), (9286, 9820)]