42787820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{487}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 94445568

約数和(自身を除く): 51657748

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 191, 230, 382, 460, 487, 764, 955, 974, 1910, 1948, 2435, 3820, 4393, 4870, 8786, 9740, 11201, 17572, 21965, 22402, 43930, 44804, 56005, 87860, 93017, 112010, 186034, 224020, 372068, 465085, 930170, 1860340, 2139391, 4278782, 8557564, 10696955, 21393910, 42787820]

約数ペア:

[(1, 42787820), (2, 21393910), (4, 10696955), (5, 8557564), (10, 4278782), (20, 2139391), (23, 1860340), (46, 930170), (92, 465085), (115, 372068), (191, 224020), (230, 186034), (382, 112010), (460, 93017), (487, 87860), (764, 56005), (955, 44804), (974, 43930), (1910, 22402), (1948, 21965), (2435, 17572), (3820, 11201), (4393, 9740), (4870, 8786)]