254126780

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 541810080

約数和(自身を除く): 287683300

約数列:

[1, 2, 4, 5, 10, 20, 137, 163, 274, 326, 548, 569, 652, 685, 815, 1138, 1370, 1630, 2276, 2740, 2845, 3260, 5690, 11380, 22331, 44662, 77953, 89324, 92747, 111655, 155906, 185494, 223310, 311812, 370988, 389765, 446620, 463735, 779530, 927470, 1559060, 1854940, 12706339, 25412678, 50825356, 63531695, 127063390, 254126780]

約数ペア:

[(1, 254126780), (2, 127063390), (4, 63531695), (5, 50825356), (10, 25412678), (20, 12706339), (137, 1854940), (163, 1559060), (274, 927470), (326, 779530), (548, 463735), (569, 446620), (652, 389765), (685, 370988), (815, 311812), (1138, 223310), (1370, 185494), (1630, 155906), (2276, 111655), (2740, 92747), (2845, 89324), (3260, 77953), (5690, 44662), (11380, 22331)]