207805025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:290

約数の個数: 48

約数和(自身を含む): 284606784

約数和(自身を除く): 76801759

約数列:

[1, 5, 17, 25, 43, 83, 85, 137, 215, 415, 425, 685, 731, 1075, 1411, 2075, 2329, 3425, 3569, 3655, 5891, 7055, 11371, 11645, 17845, 18275, 29455, 35275, 56855, 58225, 60673, 89225, 100147, 147275, 193307, 284275, 303365, 488953, 500735, 966535, 1516825, 2444765, 2503675, 4832675, 8312201, 12223825, 41561005, 207805025]

約数ペア:

[(1, 207805025), (5, 41561005), (17, 12223825), (25, 8312201), (43, 4832675), (83, 2503675), (85, 2444765), (137, 1516825), (215, 966535), (415, 500735), (425, 488953), (685, 303365), (731, 284275), (1075, 193307), (1411, 147275), (2075, 100147), (2329, 89225), (3425, 60673), (3569, 58225), (3655, 56855), (5891, 35275), (7055, 29455), (11371, 18275), (11645, 17845)]