19937640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{166147}}^1$

素因数の和:166161

約数の個数: 32

約数和(自身を含む): 59813280

約数和(自身を除く): 39875640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 166147, 332294, 498441, 664588, 830735, 996882, 1329176, 1661470, 1993764, 2492205, 3322940, 3987528, 4984410, 6645880, 9968820, 19937640]

約数ペア:

[(1, 19937640), (2, 9968820), (3, 6645880), (4, 4984410), (5, 3987528), (6, 3322940), (8, 2492205), (10, 1993764), (12, 1661470), (15, 1329176), (20, 996882), (24, 830735), (30, 664588), (40, 498441), (60, 332294), (120, 166147)]