79988740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18097}}^1$

素因数の和:18136

約数の個数: 48

約数和(自身を含む): 191549232

約数和(自身を除く): 111560492

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, 18097, 36194, 72388, 90485, 180970, 235261, 307649, 361940, 470522, 615298, 941044, 1176305, 1230596, 1538245, 2352610, 3076490, 3999437, 4705220, 6152980, 7998874, 15997748, 19997185, 39994370, 79988740]

約数ペア:

[(1, 79988740), (2, 39994370), (4, 19997185), (5, 15997748), (10, 7998874), (13, 6152980), (17, 4705220), (20, 3999437), (26, 3076490), (34, 2352610), (52, 1538245), (65, 1230596), (68, 1176305), (85, 941044), (130, 615298), (170, 470522), (221, 361940), (260, 307649), (340, 235261), (442, 180970), (884, 90485), (1105, 72388), (2210, 36194), (4420, 18097)]