20555008

素因数分解:

$2^8\times {\mathrm{23}}^1\times {\mathrm{3491}}^1$

素因数の和:3530

約数の個数: 36

約数和(自身を含む): 42825888

約数和(自身を除く): 22270880

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 736, 1472, 2944, 3491, 5888, 6982, 13964, 27928, 55856, 80293, 111712, 160586, 223424, 321172, 446848, 642344, 893696, 1284688, 2569376, 5138752, 10277504, 20555008]

約数ペア:

[(1, 20555008), (2, 10277504), (4, 5138752), (8, 2569376), (16, 1284688), (23, 893696), (32, 642344), (46, 446848), (64, 321172), (92, 223424), (128, 160586), (184, 111712), (256, 80293), (368, 55856), (736, 27928), (1472, 13964), (2944, 6982), (3491, 5888)]