20718570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{1373}}^1$

素因数の和:1886

約数の個数: 32

約数和(自身を含む): 49859712

約数和(自身を除く): 29141142

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 503, 1006, 1373, 1509, 2515, 2746, 3018, 4119, 5030, 6865, 7545, 8238, 13730, 15090, 20595, 41190, 690619, 1381238, 2071857, 3453095, 4143714, 6906190, 10359285, 20718570]

約数ペア:

[(1, 20718570), (2, 10359285), (3, 6906190), (5, 4143714), (6, 3453095), (10, 2071857), (15, 1381238), (30, 690619), (503, 41190), (1006, 20595), (1373, 15090), (1509, 13730), (2515, 8238), (2746, 7545), (3018, 6865), (4119, 5030)]