20873025

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{107}}^1$

素因数の和:160

約数の個数: 72

約数和(自身を含む): 41113440

約数和(自身を除く): 20240415

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 107, 135, 153, 225, 255, 289, 321, 425, 459, 535, 675, 765, 867, 963, 1275, 1445, 1605, 1819, 2295, 2601, 2675, 2889, 3825, 4335, 4815, 5457, 7225, 7803, 8025, 9095, 11475, 13005, 14445, 16371, 21675, 24075, 27285, 30923, 39015, 45475, 49113, 65025, 72225, 81855, 92769, 136425, 154615, 195075, 245565, 278307, 409275, 463845, 773075, 834921, 1227825, 1391535, 2319225, 4174605, 6957675, 20873025]

約数ペア:

[(1, 20873025), (3, 6957675), (5, 4174605), (9, 2319225), (15, 1391535), (17, 1227825), (25, 834921), (27, 773075), (45, 463845), (51, 409275), (75, 278307), (85, 245565), (107, 195075), (135, 154615), (153, 136425), (225, 92769), (255, 81855), (289, 72225), (321, 65025), (425, 49113), (459, 45475), (535, 39015), (675, 30923), (765, 27285), (867, 24075), (963, 21675), (1275, 16371), (1445, 14445), (1605, 13005), (1819, 11475), (2295, 9095), (2601, 8025), (2675, 7803), (2889, 7225), (3825, 5457), (4335, 4815)]