18210780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 64209600

約数和(自身を除く): 45998820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 149, 180, 194, 210, 252, 291, 298, 315, 388, 420, 447, 485, 582, 596, 630, 679, 745, 873, 894, 970, 1043, 1164, 1260, 1341, 1358, 1455, 1490, 1746, 1788, 1940, 2037, 2086, 2235, 2682, 2716, 2910, 2980, 3129, 3395, 3492, 4074, 4172, 4365, 4470, 5215, 5364, 5820, 6111, 6258, 6705, 6790, 8148, 8730, 8940, 9387, 10185, 10430, 12222, 12516, 13410, 13580, 14453, 15645, 17460, 18774, 20370, 20860, 24444, 26820, 28906, 30555, 31290, 37548, 40740, 43359, 46935, 57812, 61110, 62580, 72265, 86718, 93870, 101171, 122220, 130077, 144530, 173436, 187740, 202342, 216795, 260154, 289060, 303513, 404684, 433590, 505855, 520308, 607026, 650385, 867180, 910539, 1011710, 1214052, 1300770, 1517565, 1821078, 2023420, 2601540, 3035130, 3642156, 4552695, 6070260, 9105390, 18210780]

約数ペア:

[(1, 18210780), (2, 9105390), (3, 6070260), (4, 4552695), (5, 3642156), (6, 3035130), (7, 2601540), (9, 2023420), (10, 1821078), (12, 1517565), (14, 1300770), (15, 1214052), (18, 1011710), (20, 910539), (21, 867180), (28, 650385), (30, 607026), (35, 520308), (36, 505855), (42, 433590), (45, 404684), (60, 303513), (63, 289060), (70, 260154), (84, 216795), (90, 202342), (97, 187740), (105, 173436), (126, 144530), (140, 130077), (149, 122220), (180, 101171), (194, 93870), (210, 86718), (252, 72265), (291, 62580), (298, 61110), (315, 57812), (388, 46935), (420, 43359), (447, 40740), (485, 37548), (582, 31290), (596, 30555), (630, 28906), (679, 26820), (745, 24444), (873, 20860), (894, 20370), (970, 18774), (1043, 17460), (1164, 15645), (1260, 14453), (1341, 13580), (1358, 13410), (1455, 12516), (1490, 12222), (1746, 10430), (1788, 10185), (1940, 9387), (2037, 8940), (2086, 8730), (2235, 8148), (2682, 6790), (2716, 6705), (2910, 6258), (2980, 6111), (3129, 5820), (3395, 5364), (3492, 5215), (4074, 4470), (4172, 4365)]