18798590

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 37050912

約数和(自身を除く): 18252322

約数列:

[1, 2, 5, 10, 23, 37, 46, 47, 74, 94, 115, 185, 230, 235, 370, 470, 851, 1081, 1702, 1739, 2162, 2209, 3478, 4255, 4418, 5405, 8510, 8695, 10810, 11045, 17390, 22090, 39997, 50807, 79994, 81733, 101614, 163466, 199985, 254035, 399970, 408665, 508070, 817330, 1879859, 3759718, 9399295, 18798590]

約数ペア:

[(1, 18798590), (2, 9399295), (5, 3759718), (10, 1879859), (23, 817330), (37, 508070), (46, 408665), (47, 399970), (74, 254035), (94, 199985), (115, 163466), (185, 101614), (230, 81733), (235, 79994), (370, 50807), (470, 39997), (851, 22090), (1081, 17390), (1702, 11045), (1739, 10810), (2162, 8695), (2209, 8510), (3478, 5405), (4255, 4418)]