20448656

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:519

約数の個数: 40

約数和(自身を含む): 41705664

約数和(自身を除く): 21257008

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 181, 184, 307, 362, 368, 614, 724, 1228, 1448, 2456, 2896, 4163, 4912, 7061, 8326, 14122, 16652, 28244, 33304, 55567, 56488, 66608, 111134, 112976, 222268, 444536, 889072, 1278041, 2556082, 5112164, 10224328, 20448656]

約数ペア:

[(1, 20448656), (2, 10224328), (4, 5112164), (8, 2556082), (16, 1278041), (23, 889072), (46, 444536), (92, 222268), (181, 112976), (184, 111134), (307, 66608), (362, 56488), (368, 55567), (614, 33304), (724, 28244), (1228, 16652), (1448, 14122), (2456, 8326), (2896, 7061), (4163, 4912)]