28971675

素因数分解:

$3^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 27899685

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 171, 225, 243, 251, 285, 405, 475, 513, 675, 753, 855, 1215, 1255, 1425, 1539, 2025, 2259, 2565, 3765, 4275, 4617, 4769, 6075, 6275, 6777, 7695, 11295, 12825, 14307, 18825, 20331, 23085, 23845, 33885, 38475, 42921, 56475, 60993, 71535, 101655, 115425, 119225, 128763, 169425, 214605, 304965, 357675, 386289, 508275, 643815, 1073025, 1158867, 1524825, 1931445, 3219075, 5794335, 9657225, 28971675]

約数ペア:

[(1, 28971675), (3, 9657225), (5, 5794335), (9, 3219075), (15, 1931445), (19, 1524825), (25, 1158867), (27, 1073025), (45, 643815), (57, 508275), (75, 386289), (81, 357675), (95, 304965), (135, 214605), (171, 169425), (225, 128763), (243, 119225), (251, 115425), (285, 101655), (405, 71535), (475, 60993), (513, 56475), (675, 42921), (753, 38475), (855, 33885), (1215, 23845), (1255, 23085), (1425, 20331), (1539, 18825), (2025, 14307), (2259, 12825), (2565, 11295), (3765, 7695), (4275, 6777), (4617, 6275), (4769, 6075)]