280147720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{2593}}^1$

素因数の和:2714

約数の個数: 64

約数和(自身を含む): 656489520

約数和(自身を除く): 376341800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 73, 74, 146, 148, 185, 292, 296, 365, 370, 584, 730, 740, 1460, 1480, 2593, 2701, 2920, 5186, 5402, 10372, 10804, 12965, 13505, 20744, 21608, 25930, 27010, 51860, 54020, 95941, 103720, 108040, 189289, 191882, 378578, 383764, 479705, 757156, 767528, 946445, 959410, 1514312, 1892890, 1918820, 3785780, 3837640, 7003693, 7571560, 14007386, 28014772, 35018465, 56029544, 70036930, 140073860, 280147720]

約数ペア:

[(1, 280147720), (2, 140073860), (4, 70036930), (5, 56029544), (8, 35018465), (10, 28014772), (20, 14007386), (37, 7571560), (40, 7003693), (73, 3837640), (74, 3785780), (146, 1918820), (148, 1892890), (185, 1514312), (292, 959410), (296, 946445), (365, 767528), (370, 757156), (584, 479705), (730, 383764), (740, 378578), (1460, 191882), (1480, 189289), (2593, 108040), (2701, 103720), (2920, 95941), (5186, 54020), (5402, 51860), (10372, 27010), (10804, 25930), (12965, 21608), (13505, 20744)]