220165840

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{13043}}^1$

素因数の和:13267

約数の個数: 40

約数和(自身を含む): 514351008

約数和(自身を除く): 294185168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1688, 2110, 3376, 4220, 8440, 13043, 16880, 26086, 52172, 65215, 104344, 130430, 208688, 260860, 521720, 1043440, 2752073, 5504146, 11008292, 13760365, 22016584, 27520730, 44033168, 55041460, 110082920, 220165840]

約数ペア:

[(1, 220165840), (2, 110082920), (4, 55041460), (5, 44033168), (8, 27520730), (10, 22016584), (16, 13760365), (20, 11008292), (40, 5504146), (80, 2752073), (211, 1043440), (422, 521720), (844, 260860), (1055, 208688), (1688, 130430), (2110, 104344), (3376, 65215), (4220, 52172), (8440, 26086), (13043, 16880)]