21208341480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{443}}^1\times {\mathrm{13757}}^1$

素因数の和:14243

約数の個数: 128

約数和(自身を含む): 65972361600

約数和(自身を除く): 44764020120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 443, 580, 696, 870, 886, 1160, 1329, 1740, 1772, 2215, 2658, 3480, 3544, 4430, 5316, 6645, 8860, 10632, 12847, 13290, 13757, 17720, 25694, 26580, 27514, 38541, 41271, 51388, 53160, 55028, 64235, 68785, 77082, 82542, 102776, 110056, 128470, 137570, 154164, 165084, 192705, 206355, 256940, 275140, 308328, 330168, 385410, 398953, 412710, 513880, 550280, 770820, 797906, 825420, 1196859, 1541640, 1595812, 1650840, 1994765, 2393718, 3191624, 3989530, 4787436, 5984295, 6094351, 7979060, 9574872, 11968590, 12188702, 15958120, 18283053, 23937180, 24377404, 30471755, 36566106, 47874360, 48754808, 60943510, 73132212, 91415265, 121887020, 146264424, 176736179, 182830530, 243774040, 353472358, 365661060, 530208537, 706944716, 731322120, 883680895, 1060417074, 1413889432, 1767361790, 2120834148, 2651042685, 3534723580, 4241668296, 5302085370, 7069447160, 10604170740, 21208341480]

約数ペア:

[(1, 21208341480), (2, 10604170740), (3, 7069447160), (4, 5302085370), (5, 4241668296), (6, 3534723580), (8, 2651042685), (10, 2120834148), (12, 1767361790), (15, 1413889432), (20, 1060417074), (24, 883680895), (29, 731322120), (30, 706944716), (40, 530208537), (58, 365661060), (60, 353472358), (87, 243774040), (116, 182830530), (120, 176736179), (145, 146264424), (174, 121887020), (232, 91415265), (290, 73132212), (348, 60943510), (435, 48754808), (443, 47874360), (580, 36566106), (696, 30471755), (870, 24377404), (886, 23937180), (1160, 18283053), (1329, 15958120), (1740, 12188702), (1772, 11968590), (2215, 9574872), (2658, 7979060), (3480, 6094351), (3544, 5984295), (4430, 4787436), (5316, 3989530), (6645, 3191624), (8860, 2393718), (10632, 1994765), (12847, 1650840), (13290, 1595812), (13757, 1541640), (17720, 1196859), (25694, 825420), (26580, 797906), (27514, 770820), (38541, 550280), (41271, 513880), (51388, 412710), (53160, 398953), (55028, 385410), (64235, 330168), (68785, 308328), (77082, 275140), (82542, 256940), (102776, 206355), (110056, 192705), (128470, 165084), (137570, 154164)]