27789220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^2$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 64839096

約数和(自身を除く): 37049876

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 47, 68, 74, 85, 94, 148, 170, 185, 188, 235, 340, 370, 470, 629, 740, 799, 940, 1258, 1598, 1739, 2209, 2516, 3145, 3196, 3478, 3995, 4418, 6290, 6956, 7990, 8695, 8836, 11045, 12580, 15980, 17390, 22090, 29563, 34780, 37553, 44180, 59126, 75106, 81733, 118252, 147815, 150212, 163466, 187765, 295630, 326932, 375530, 408665, 591260, 751060, 817330, 1389461, 1634660, 2778922, 5557844, 6947305, 13894610, 27789220]

約数ペア:

[(1, 27789220), (2, 13894610), (4, 6947305), (5, 5557844), (10, 2778922), (17, 1634660), (20, 1389461), (34, 817330), (37, 751060), (47, 591260), (68, 408665), (74, 375530), (85, 326932), (94, 295630), (148, 187765), (170, 163466), (185, 150212), (188, 147815), (235, 118252), (340, 81733), (370, 75106), (470, 59126), (629, 44180), (740, 37553), (799, 34780), (940, 29563), (1258, 22090), (1598, 17390), (1739, 15980), (2209, 12580), (2516, 11045), (3145, 8836), (3196, 8695), (3478, 7990), (3995, 6956), (4418, 6290)]