20682746240

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2485907}}^1$

素因数の和:2485939

約数の個数: 64

約数和(自身を含む): 53248149360

約数和(自身を除く): 32565403120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 2485907, 4971814, 9943628, 12429535, 19887256, 24859070, 32316791, 39774512, 49718140, 64633582, 79549024, 99436280, 129267164, 159098048, 161583955, 198872560, 258534328, 318196096, 323167910, 397745120, 517068656, 646335820, 795490240, 1034137312, 1292671640, 1590980480, 2068274624, 2585343280, 4136549248, 5170686560, 10341373120, 20682746240]

約数ペア:

[(1, 20682746240), (2, 10341373120), (4, 5170686560), (5, 4136549248), (8, 2585343280), (10, 2068274624), (13, 1590980480), (16, 1292671640), (20, 1034137312), (26, 795490240), (32, 646335820), (40, 517068656), (52, 397745120), (64, 323167910), (65, 318196096), (80, 258534328), (104, 198872560), (128, 161583955), (130, 159098048), (160, 129267164), (208, 99436280), (260, 79549024), (320, 64633582), (416, 49718140), (520, 39774512), (640, 32316791), (832, 24859070), (1040, 19887256), (1664, 12429535), (2080, 9943628), (4160, 4971814), (8320, 2485907)]