18821400320

素因数分解:

$2^8\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{11887}}^1$

素因数の和:13145

約数の個数: 72

約数和(自身を含む): 45123376704

約数和(自身を除く): 26301976384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1237, 1280, 2474, 4948, 6185, 9896, 11887, 12370, 19792, 23774, 24740, 39584, 47548, 49480, 59435, 79168, 95096, 98960, 118870, 158336, 190192, 197920, 237740, 316672, 380384, 395840, 475480, 760768, 791680, 950960, 1521536, 1583360, 1901920, 3043072, 3803840, 7607680, 14704219, 15215360, 29408438, 58816876, 73521095, 117633752, 147042190, 235267504, 294084380, 470535008, 588168760, 941070016, 1176337520, 1882140032, 2352675040, 3764280064, 4705350080, 9410700160, 18821400320]

約数ペア:

[(1, 18821400320), (2, 9410700160), (4, 4705350080), (5, 3764280064), (8, 2352675040), (10, 1882140032), (16, 1176337520), (20, 941070016), (32, 588168760), (40, 470535008), (64, 294084380), (80, 235267504), (128, 147042190), (160, 117633752), (256, 73521095), (320, 58816876), (640, 29408438), (1237, 15215360), (1280, 14704219), (2474, 7607680), (4948, 3803840), (6185, 3043072), (9896, 1901920), (11887, 1583360), (12370, 1521536), (19792, 950960), (23774, 791680), (24740, 760768), (39584, 475480), (47548, 395840), (49480, 380384), (59435, 316672), (79168, 237740), (95096, 197920), (98960, 190192), (118870, 158336)]