20602270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{439}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 42245280

約数和(自身を除く): 21643010

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 361, 439, 494, 722, 878, 1235, 1805, 2195, 2470, 3610, 4390, 4693, 5707, 8341, 9386, 11414, 16682, 23465, 28535, 41705, 46930, 57070, 83410, 108433, 158479, 216866, 316958, 542165, 792395, 1084330, 1584790, 2060227, 4120454, 10301135, 20602270]

約数ペア:

[(1, 20602270), (2, 10301135), (5, 4120454), (10, 2060227), (13, 1584790), (19, 1084330), (26, 792395), (38, 542165), (65, 316958), (95, 216866), (130, 158479), (190, 108433), (247, 83410), (361, 57070), (439, 46930), (494, 41705), (722, 28535), (878, 23465), (1235, 16682), (1805, 11414), (2195, 9386), (2470, 8341), (3610, 5707), (4390, 4693)]