82215640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{709}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 200390400

約数和(自身を除く): 118174760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 223, 260, 446, 520, 709, 892, 1115, 1418, 1784, 2230, 2836, 2899, 3545, 4460, 5672, 5798, 7090, 8920, 9217, 11596, 14180, 14495, 18434, 23192, 28360, 28990, 36868, 46085, 57980, 73736, 92170, 115960, 158107, 184340, 316214, 368680, 632428, 790535, 1264856, 1581070, 2055391, 3162140, 4110782, 6324280, 8221564, 10276955, 16443128, 20553910, 41107820, 82215640]

約数ペア:

[(1, 82215640), (2, 41107820), (4, 20553910), (5, 16443128), (8, 10276955), (10, 8221564), (13, 6324280), (20, 4110782), (26, 3162140), (40, 2055391), (52, 1581070), (65, 1264856), (104, 790535), (130, 632428), (223, 368680), (260, 316214), (446, 184340), (520, 158107), (709, 115960), (892, 92170), (1115, 73736), (1418, 57980), (1784, 46085), (2230, 36868), (2836, 28990), (2899, 28360), (3545, 23192), (4460, 18434), (5672, 14495), (5798, 14180), (7090, 11596), (8920, 9217)]