51821840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3191}}^1$

素因数の和:3240

約数の個数: 80

約数和(自身を含む): 142490880

約数和(自身を除く): 90669040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 3191, 3248, 4060, 6382, 8120, 12764, 15955, 16240, 22337, 25528, 31910, 44674, 51056, 63820, 89348, 92539, 111685, 127640, 178696, 185078, 223370, 255280, 357392, 370156, 446740, 462695, 647773, 740312, 893480, 925390, 1295546, 1480624, 1786960, 1850780, 2591092, 3238865, 3701560, 5182184, 6477730, 7403120, 10364368, 12955460, 25910920, 51821840]

約数ペア:

[(1, 51821840), (2, 25910920), (4, 12955460), (5, 10364368), (7, 7403120), (8, 6477730), (10, 5182184), (14, 3701560), (16, 3238865), (20, 2591092), (28, 1850780), (29, 1786960), (35, 1480624), (40, 1295546), (56, 925390), (58, 893480), (70, 740312), (80, 647773), (112, 462695), (116, 446740), (140, 370156), (145, 357392), (203, 255280), (232, 223370), (280, 185078), (290, 178696), (406, 127640), (464, 111685), (560, 92539), (580, 89348), (812, 63820), (1015, 51056), (1160, 44674), (1624, 31910), (2030, 25528), (2320, 22337), (3191, 16240), (3248, 15955), (4060, 12764), (6382, 8120)]