208418220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:592

約数の個数: 144

約数和(自身を含む): 671580000

約数和(自身を除く): 463161780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 149, 171, 180, 190, 228, 285, 298, 342, 380, 409, 447, 570, 596, 684, 745, 818, 855, 894, 1140, 1227, 1341, 1490, 1636, 1710, 1788, 2045, 2235, 2454, 2682, 2831, 2980, 3420, 3681, 4090, 4470, 4908, 5364, 5662, 6135, 6705, 7362, 7771, 8180, 8493, 8940, 11324, 12270, 13410, 14155, 14724, 15542, 16986, 18405, 23313, 24540, 25479, 26820, 28310, 31084, 33972, 36810, 38855, 42465, 46626, 50958, 56620, 60941, 69939, 73620, 77710, 84930, 93252, 101916, 116565, 121882, 127395, 139878, 155420, 169860, 182823, 233130, 243764, 254790, 279756, 304705, 349695, 365646, 466260, 509580, 548469, 609410, 699390, 731292, 914115, 1096938, 1157879, 1218820, 1398780, 1828230, 2193876, 2315758, 2742345, 3473637, 3656460, 4631516, 5484690, 5789395, 6947274, 10420911, 10969380, 11578790, 13894548, 17368185, 20841822, 23157580, 34736370, 41683644, 52104555, 69472740, 104209110, 208418220]

約数ペア:

[(1, 208418220), (2, 104209110), (3, 69472740), (4, 52104555), (5, 41683644), (6, 34736370), (9, 23157580), (10, 20841822), (12, 17368185), (15, 13894548), (18, 11578790), (19, 10969380), (20, 10420911), (30, 6947274), (36, 5789395), (38, 5484690), (45, 4631516), (57, 3656460), (60, 3473637), (76, 2742345), (90, 2315758), (95, 2193876), (114, 1828230), (149, 1398780), (171, 1218820), (180, 1157879), (190, 1096938), (228, 914115), (285, 731292), (298, 699390), (342, 609410), (380, 548469), (409, 509580), (447, 466260), (570, 365646), (596, 349695), (684, 304705), (745, 279756), (818, 254790), (855, 243764), (894, 233130), (1140, 182823), (1227, 169860), (1341, 155420), (1490, 139878), (1636, 127395), (1710, 121882), (1788, 116565), (2045, 101916), (2235, 93252), (2454, 84930), (2682, 77710), (2831, 73620), (2980, 69939), (3420, 60941), (3681, 56620), (4090, 50958), (4470, 46626), (4908, 42465), (5364, 38855), (5662, 36810), (6135, 33972), (6705, 31084), (7362, 28310), (7771, 26820), (8180, 25479), (8493, 24540), (8940, 23313), (11324, 18405), (12270, 16986), (13410, 15542), (14155, 14724)]