217391220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{38959}}^1$

素因数の和:39005

約数の個数: 72

約数和(自身を含む): 680709120

約数和(自身を除く): 463317900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 38959, 77918, 116877, 155836, 194795, 233754, 350631, 389590, 467508, 584385, 701262, 779180, 1168770, 1207729, 1402524, 1753155, 2337540, 2415458, 3506310, 3623187, 4830916, 6038645, 7012620, 7246374, 10869561, 12077290, 14492748, 18115935, 21739122, 24154580, 36231870, 43478244, 54347805, 72463740, 108695610, 217391220]

約数ペア:

[(1, 217391220), (2, 108695610), (3, 72463740), (4, 54347805), (5, 43478244), (6, 36231870), (9, 24154580), (10, 21739122), (12, 18115935), (15, 14492748), (18, 12077290), (20, 10869561), (30, 7246374), (31, 7012620), (36, 6038645), (45, 4830916), (60, 3623187), (62, 3506310), (90, 2415458), (93, 2337540), (124, 1753155), (155, 1402524), (180, 1207729), (186, 1168770), (279, 779180), (310, 701262), (372, 584385), (465, 467508), (558, 389590), (620, 350631), (930, 233754), (1116, 194795), (1395, 155836), (1860, 116877), (2790, 77918), (5580, 38959)]