1283920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1459}}^1$

素因数の和:1483

約数の個数: 40

約数和(自身を含む): 3258720

約数和(自身を除く): 1974800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1459, 2918, 5836, 7295, 11672, 14590, 16049, 23344, 29180, 32098, 58360, 64196, 80245, 116720, 128392, 160490, 256784, 320980, 641960, 1283920]

約数ペア:

[(1, 1283920), (2, 641960), (4, 320980), (5, 256784), (8, 160490), (10, 128392), (11, 116720), (16, 80245), (20, 64196), (22, 58360), (40, 32098), (44, 29180), (55, 23344), (80, 16049), (88, 14590), (110, 11672), (176, 7295), (220, 5836), (440, 2918), (880, 1459)]