1888990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 3649536

約数和(自身を除く): 1760546

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 191, 215, 230, 382, 430, 955, 989, 1910, 1978, 4393, 4945, 8213, 8786, 9890, 16426, 21965, 41065, 43930, 82130, 188899, 377798, 944495, 1888990]

約数ペア:

[(1, 1888990), (2, 944495), (5, 377798), (10, 188899), (23, 82130), (43, 43930), (46, 41065), (86, 21965), (115, 16426), (191, 9890), (215, 8786), (230, 8213), (382, 4945), (430, 4393), (955, 1978), (989, 1910)]