20803615

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 30514176

約数和(自身を除く): 9710561

約数列:

[1, 5, 7, 23, 35, 43, 115, 161, 215, 301, 601, 805, 989, 1505, 3005, 4207, 4945, 6923, 13823, 21035, 25843, 34615, 69115, 96761, 129215, 180901, 483805, 594389, 904505, 2971945, 4160723, 20803615]

約数ペア:

[(1, 20803615), (5, 4160723), (7, 2971945), (23, 904505), (35, 594389), (43, 483805), (115, 180901), (161, 129215), (215, 96761), (301, 69115), (601, 34615), (805, 25843), (989, 21035), (1505, 13823), (3005, 6923), (4207, 4945)]