81715698440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3581}}^1\times {\mathrm{13267}}^1$

素因数の和:16902

約数の個数: 64

約数和(自身を含む): 188202864960

約数和(自身を除く): 106487166520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 3581, 7162, 13267, 14324, 17905, 26534, 28648, 35810, 53068, 66335, 71620, 106136, 132670, 143240, 153983, 265340, 307966, 530680, 570481, 615932, 769915, 1140962, 1231864, 1539830, 2281924, 2852405, 3079660, 4563848, 5704810, 6159320, 11409620, 22819240, 47509127, 95018254, 190036508, 237545635, 380073016, 475091270, 950182540, 1900365080, 2042892461, 4085784922, 8171569844, 10214462305, 16343139688, 20428924610, 40857849220, 81715698440]

約数ペア:

[(1, 81715698440), (2, 40857849220), (4, 20428924610), (5, 16343139688), (8, 10214462305), (10, 8171569844), (20, 4085784922), (40, 2042892461), (43, 1900365080), (86, 950182540), (172, 475091270), (215, 380073016), (344, 237545635), (430, 190036508), (860, 95018254), (1720, 47509127), (3581, 22819240), (7162, 11409620), (13267, 6159320), (14324, 5704810), (17905, 4563848), (26534, 3079660), (28648, 2852405), (35810, 2281924), (53068, 1539830), (66335, 1231864), (71620, 1140962), (106136, 769915), (132670, 615932), (143240, 570481), (153983, 530680), (265340, 307966)]