400968464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 865277952

約数和(自身を除く): 464309488

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 127, 172, 208, 254, 344, 353, 508, 559, 688, 706, 1016, 1118, 1412, 1651, 2032, 2236, 2824, 3302, 4472, 4589, 5461, 5648, 6604, 8944, 9178, 10922, 13208, 15179, 18356, 21844, 26416, 30358, 36712, 43688, 44831, 60716, 70993, 73424, 87376, 89662, 121432, 141986, 179324, 197327, 242864, 283972, 358648, 394654, 567944, 582803, 717296, 789308, 1135888, 1165606, 1578616, 1927733, 2331212, 3157232, 3855466, 4662424, 7710932, 9324848, 15421864, 25060529, 30843728, 50121058, 100242116, 200484232, 400968464]

約数ペア:

[(1, 400968464), (2, 200484232), (4, 100242116), (8, 50121058), (13, 30843728), (16, 25060529), (26, 15421864), (43, 9324848), (52, 7710932), (86, 4662424), (104, 3855466), (127, 3157232), (172, 2331212), (208, 1927733), (254, 1578616), (344, 1165606), (353, 1135888), (508, 789308), (559, 717296), (688, 582803), (706, 567944), (1016, 394654), (1118, 358648), (1412, 283972), (1651, 242864), (2032, 197327), (2236, 179324), (2824, 141986), (3302, 121432), (4472, 89662), (4589, 87376), (5461, 73424), (5648, 70993), (6604, 60716), (8944, 44831), (9178, 43688), (10922, 36712), (13208, 30358), (15179, 26416), (18356, 21844)]