20803240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30593}}^1$

素因数の和:30621

約数の個数: 32

約数和(自身を含む): 49562280

約数和(自身を除く): 28759040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30593, 61186, 122372, 152965, 244744, 305930, 520081, 611860, 1040162, 1223720, 2080324, 2600405, 4160648, 5200810, 10401620, 20803240]

約数ペア:

[(1, 20803240), (2, 10401620), (4, 5200810), (5, 4160648), (8, 2600405), (10, 2080324), (17, 1223720), (20, 1040162), (34, 611860), (40, 520081), (68, 305930), (85, 244744), (136, 152965), (170, 122372), (340, 61186), (680, 30593)]