3777980

素因数分解:

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

素因数の和:266

約数の個数: 48

約数和(自身を含む): 8515584

約数和(自身を除く): 4737604

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 191, 215, 230, 382, 430, 460, 764, 860, 955, 989, 1910, 1978, 3820, 3956, 4393, 4945, 8213, 8786, 9890, 16426, 17572, 19780, 21965, 32852, 41065, 43930, 82130, 87860, 164260, 188899, 377798, 755596, 944495, 1888990, 3777980]

約数ペア:

[(1, 3777980), (2, 1888990), (4, 944495), (5, 755596), (10, 377798), (20, 188899), (23, 164260), (43, 87860), (46, 82130), (86, 43930), (92, 41065), (115, 32852), (172, 21965), (191, 19780), (215, 17572), (230, 16426), (382, 9890), (430, 8786), (460, 8213), (764, 4945), (860, 4393), (955, 3956), (989, 3820), (1910, 1978)]