18612720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1231}}^1$

素因数の和:1260

約数の個数: 160

約数和(自身を含む): 73328640

約数和(自身を除く): 54715920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1231, 1260, 1512, 1680, 1890, 2160, 2462, 2520, 3024, 3693, 3780, 4924, 5040, 6155, 7386, 7560, 8617, 9848, 11079, 12310, 14772, 15120, 17234, 18465, 19696, 22158, 24620, 25851, 29544, 33237, 34468, 36930, 43085, 44316, 49240, 51702, 55395, 59088, 66474, 68936, 73860, 77553, 86170, 88632, 98480, 103404, 110790, 129255, 132948, 137872, 147720, 155106, 166185, 172340, 177264, 206808, 221580, 232659, 258510, 265896, 295440, 310212, 332370, 344680, 387765, 413616, 443160, 465318, 517020, 531792, 620424, 664740, 689360, 775530, 886320, 930636, 1034040, 1163295, 1240848, 1329480, 1551060, 1861272, 2068080, 2326590, 2658960, 3102120, 3722544, 4653180, 6204240, 9306360, 18612720]

約数ペア:

[(1, 18612720), (2, 9306360), (3, 6204240), (4, 4653180), (5, 3722544), (6, 3102120), (7, 2658960), (8, 2326590), (9, 2068080), (10, 1861272), (12, 1551060), (14, 1329480), (15, 1240848), (16, 1163295), (18, 1034040), (20, 930636), (21, 886320), (24, 775530), (27, 689360), (28, 664740), (30, 620424), (35, 531792), (36, 517020), (40, 465318), (42, 443160), (45, 413616), (48, 387765), (54, 344680), (56, 332370), (60, 310212), (63, 295440), (70, 265896), (72, 258510), (80, 232659), (84, 221580), (90, 206808), (105, 177264), (108, 172340), (112, 166185), (120, 155106), (126, 147720), (135, 137872), (140, 132948), (144, 129255), (168, 110790), (180, 103404), (189, 98480), (210, 88632), (216, 86170), (240, 77553), (252, 73860), (270, 68936), (280, 66474), (315, 59088), (336, 55395), (360, 51702), (378, 49240), (420, 44316), (432, 43085), (504, 36930), (540, 34468), (560, 33237), (630, 29544), (720, 25851), (756, 24620), (840, 22158), (945, 19696), (1008, 18465), (1080, 17234), (1231, 15120), (1260, 14772), (1512, 12310), (1680, 11079), (1890, 9848), (2160, 8617), (2462, 7560), (2520, 7386), (3024, 6155), (3693, 5040), (3780, 4924)]