20409344

素因数分解:

$2^{10}\times {\mathrm{19}}^1\times {\mathrm{1049}}^1$

素因数の和:1088

約数の個数: 44

約数和(自身を含む): 42987000

約数和(自身を除く): 22577656

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1024, 1049, 1216, 2098, 2432, 4196, 4864, 8392, 9728, 16784, 19456, 19931, 33568, 39862, 67136, 79724, 134272, 159448, 268544, 318896, 537088, 637792, 1074176, 1275584, 2551168, 5102336, 10204672, 20409344]

約数ペア:

[(1, 20409344), (2, 10204672), (4, 5102336), (8, 2551168), (16, 1275584), (19, 1074176), (32, 637792), (38, 537088), (64, 318896), (76, 268544), (128, 159448), (152, 134272), (256, 79724), (304, 67136), (512, 39862), (608, 33568), (1024, 19931), (1049, 19456), (1216, 16784), (2098, 9728), (2432, 8392), (4196, 4864)]