725647563

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 1123948800

約数和(自身を除く): 398301237

約数列:

[1, 3, 9, 19, 57, 151, 157, 171, 179, 453, 471, 537, 1359, 1413, 1611, 2869, 2983, 3401, 8607, 8949, 10203, 23707, 25821, 26847, 27029, 28103, 30609, 71121, 81087, 84309, 213363, 243261, 252927, 450433, 513551, 533957, 1351299, 1540653, 1601871, 4053897, 4243553, 4621959, 4805613, 12730659, 38191977, 80627507, 241882521, 725647563]

約数ペア:

[(1, 725647563), (3, 241882521), (9, 80627507), (19, 38191977), (57, 12730659), (151, 4805613), (157, 4621959), (171, 4243553), (179, 4053897), (453, 1601871), (471, 1540653), (537, 1351299), (1359, 533957), (1413, 513551), (1611, 450433), (2869, 252927), (2983, 243261), (3401, 213363), (8607, 84309), (8949, 81087), (10203, 71121), (23707, 30609), (25821, 28103), (26847, 27029)]