20511296

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:391

約数の個数: 56

約数和(自身を含む): 44485560

約数和(自身を除く): 23974264

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 89, 104, 178, 208, 277, 356, 416, 554, 712, 832, 1108, 1157, 1424, 2216, 2314, 2848, 3601, 4432, 4628, 5696, 7202, 8864, 9256, 14404, 17728, 18512, 24653, 28808, 37024, 49306, 57616, 74048, 98612, 115232, 197224, 230464, 320489, 394448, 640978, 788896, 1281956, 1577792, 2563912, 5127824, 10255648, 20511296]

約数ペア:

[(1, 20511296), (2, 10255648), (4, 5127824), (8, 2563912), (13, 1577792), (16, 1281956), (26, 788896), (32, 640978), (52, 394448), (64, 320489), (89, 230464), (104, 197224), (178, 115232), (208, 98612), (277, 74048), (356, 57616), (416, 49306), (554, 37024), (712, 28808), (832, 24653), (1108, 18512), (1157, 17728), (1424, 14404), (2216, 9256), (2314, 8864), (2848, 7202), (3601, 5696), (4432, 4628)]