144644740

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 308956032

約数和(自身を除く): 164311292

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 257, 263, 428, 514, 526, 535, 1028, 1052, 1070, 1285, 1315, 2140, 2570, 2630, 5140, 5260, 27499, 28141, 54998, 56282, 67591, 109996, 112564, 135182, 137495, 140705, 270364, 274990, 281410, 337955, 549980, 562820, 675910, 1351820, 7232237, 14464474, 28928948, 36161185, 72322370, 144644740]

約数ペア:

[(1, 144644740), (2, 72322370), (4, 36161185), (5, 28928948), (10, 14464474), (20, 7232237), (107, 1351820), (214, 675910), (257, 562820), (263, 549980), (428, 337955), (514, 281410), (526, 274990), (535, 270364), (1028, 140705), (1052, 137495), (1070, 135182), (1285, 112564), (1315, 109996), (2140, 67591), (2570, 56282), (2630, 54998), (5140, 28141), (5260, 27499)]