81540120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{679501}}^1$

素因数の和:679515

約数の個数: 32

約数和(自身を含む): 244620720

約数和(自身を除く): 163080600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 679501, 1359002, 2038503, 2718004, 3397505, 4077006, 5436008, 6795010, 8154012, 10192515, 13590020, 16308024, 20385030, 27180040, 40770060, 81540120]

約数ペア:

[(1, 81540120), (2, 40770060), (3, 27180040), (4, 20385030), (5, 16308024), (6, 13590020), (8, 10192515), (10, 8154012), (12, 6795010), (15, 5436008), (20, 4077006), (24, 3397505), (30, 2718004), (40, 2038503), (60, 1359002), (120, 679501)]