21819091840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{374641}}^1$

素因数の和:374680

約数の個数: 128

約数和(自身を含む): 64198653120

約数和(自身を除く): 42379561280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1456, 1664, 1820, 2080, 2240, 2912, 3640, 4160, 4480, 5824, 7280, 8320, 11648, 14560, 29120, 58240, 374641, 749282, 1498564, 1873205, 2622487, 2997128, 3746410, 4870333, 5244974, 5994256, 7492820, 9740666, 10489948, 11988512, 13112435, 14985640, 19481332, 20979896, 23977024, 24351665, 26224870, 29971280, 34092331, 38962664, 41959792, 47954048, 48703330, 52449740, 59942560, 68184662, 77925328, 83919584, 97406660, 104899480, 119885120, 136369324, 155850656, 167839168, 170461655, 194813320, 209798960, 239770240, 272738648, 311701312, 335678336, 340923310, 389626640, 419597920, 545477296, 623402624, 681846620, 779253280, 839195840, 1090954592, 1363693240, 1558506560, 1678391680, 2181909184, 2727386480, 3117013120, 4363818368, 5454772960, 10909545920, 21819091840]

約数ペア:

[(1, 21819091840), (2, 10909545920), (4, 5454772960), (5, 4363818368), (7, 3117013120), (8, 2727386480), (10, 2181909184), (13, 1678391680), (14, 1558506560), (16, 1363693240), (20, 1090954592), (26, 839195840), (28, 779253280), (32, 681846620), (35, 623402624), (40, 545477296), (52, 419597920), (56, 389626640), (64, 340923310), (65, 335678336), (70, 311701312), (80, 272738648), (91, 239770240), (104, 209798960), (112, 194813320), (128, 170461655), (130, 167839168), (140, 155850656), (160, 136369324), (182, 119885120), (208, 104899480), (224, 97406660), (260, 83919584), (280, 77925328), (320, 68184662), (364, 59942560), (416, 52449740), (448, 48703330), (455, 47954048), (520, 41959792), (560, 38962664), (640, 34092331), (728, 29971280), (832, 26224870), (896, 24351665), (910, 23977024), (1040, 20979896), (1120, 19481332), (1456, 14985640), (1664, 13112435), (1820, 11988512), (2080, 10489948), (2240, 9740666), (2912, 7492820), (3640, 5994256), (4160, 5244974), (4480, 4870333), (5824, 3746410), (7280, 2997128), (8320, 2622487), (11648, 1873205), (14560, 1498564), (29120, 749282), (58240, 374641)]