19679380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:533

約数の個数: 72

約数和(自身を含む): 49297248

約数和(自身を除く): 29617868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 467, 490, 602, 860, 934, 980, 1204, 1505, 1868, 2107, 2335, 3010, 3269, 4214, 4670, 6020, 6538, 8428, 9340, 10535, 13076, 16345, 20081, 21070, 22883, 32690, 40162, 42140, 45766, 65380, 80324, 91532, 100405, 114415, 140567, 200810, 228830, 281134, 401620, 457660, 562268, 702835, 983969, 1405670, 1967938, 2811340, 3935876, 4919845, 9839690, 19679380]

約数ペア:

[(1, 19679380), (2, 9839690), (4, 4919845), (5, 3935876), (7, 2811340), (10, 1967938), (14, 1405670), (20, 983969), (28, 702835), (35, 562268), (43, 457660), (49, 401620), (70, 281134), (86, 228830), (98, 200810), (140, 140567), (172, 114415), (196, 100405), (215, 91532), (245, 80324), (301, 65380), (430, 45766), (467, 42140), (490, 40162), (602, 32690), (860, 22883), (934, 21070), (980, 20081), (1204, 16345), (1505, 13076), (1868, 10535), (2107, 9340), (2335, 8428), (3010, 6538), (3269, 6020), (4214, 4670)]