197710990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{19991}}^1$

素因数の和:20064

約数の個数: 32

約数和(自身を含む): 380007936

約数和(自身を除く): 182296946

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 4945, 9890, 19991, 39982, 99955, 199910, 459793, 859613, 919586, 1719226, 2298965, 4298065, 4597930, 8596130, 19771099, 39542198, 98855495, 197710990]

約数ペア:

[(1, 197710990), (2, 98855495), (5, 39542198), (10, 19771099), (23, 8596130), (43, 4597930), (46, 4298065), (86, 2298965), (115, 1719226), (215, 919586), (230, 859613), (430, 459793), (989, 199910), (1978, 99955), (4945, 39982), (9890, 19991)]