20285770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1110

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18283190

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 991, 1982, 2047, 4094, 4955, 9910, 10235, 20470, 22793, 45586, 88199, 113965, 176398, 227930, 440995, 881990, 2028577, 4057154, 10142885, 20285770]

約数ペア:

[(1, 20285770), (2, 10142885), (5, 4057154), (10, 2028577), (23, 881990), (46, 440995), (89, 227930), (115, 176398), (178, 113965), (230, 88199), (445, 45586), (890, 22793), (991, 20470), (1982, 10235), (2047, 9910), (4094, 4955)]