20737720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22541}}^1$

素因数の和:22575

約数の個数: 32

約数和(自身を含む): 48690720

約数和(自身を除く): 27953000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22541, 45082, 90164, 112705, 180328, 225410, 450820, 518443, 901640, 1036886, 2073772, 2592215, 4147544, 5184430, 10368860, 20737720]

約数ペア:

[(1, 20737720), (2, 10368860), (4, 5184430), (5, 4147544), (8, 2592215), (10, 2073772), (20, 1036886), (23, 901640), (40, 518443), (46, 450820), (92, 225410), (115, 180328), (184, 112705), (230, 90164), (460, 45082), (920, 22541)]