320436740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{72497}}^1$

素因数の和:72536

約数の個数: 48

約数和(自身を含む): 767318832

約数和(自身を除く): 446882092

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 72497, 144994, 289988, 362485, 724970, 942461, 1232449, 1449940, 1884922, 2464898, 3769844, 4712305, 4929796, 6162245, 9424610, 12324490, 16021837, 18849220, 24648980, 32043674, 64087348, 80109185, 160218370, 320436740]

約数ペア:

[(1, 320436740), (2, 160218370), (4, 80109185), (5, 64087348), (10, 32043674), (13, 24648980), (17, 18849220), (20, 16021837), (26, 12324490), (34, 9424610), (52, 6162245), (65, 4929796), (68, 4712305), (85, 3769844), (130, 2464898), (170, 1884922), (221, 1449940), (260, 1232449), (340, 942461), (442, 724970), (884, 362485), (1105, 289988), (2210, 144994), (4420, 72497)]