18847840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10709}}^1$

素因数の和:10735

約数の個数: 48

約数和(自身を含む): 48580560

約数和(自身を除く): 29732720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10709, 21418, 42836, 53545, 85672, 107090, 117799, 171344, 214180, 235598, 342688, 428360, 471196, 588995, 856720, 942392, 1177990, 1713440, 1884784, 2355980, 3769568, 4711960, 9423920, 18847840]

約数ペア:

[(1, 18847840), (2, 9423920), (4, 4711960), (5, 3769568), (8, 2355980), (10, 1884784), (11, 1713440), (16, 1177990), (20, 942392), (22, 856720), (32, 588995), (40, 471196), (44, 428360), (55, 342688), (80, 235598), (88, 214180), (110, 171344), (160, 117799), (176, 107090), (220, 85672), (352, 53545), (440, 42836), (880, 21418), (1760, 10709)]