28449540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:426

約数の個数: 144

約数和(自身を含む): 100394112

約数和(自身を除く): 71944572

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, 67, 70, 84, 90, 105, 126, 134, 140, 180, 201, 210, 252, 268, 315, 335, 337, 402, 420, 469, 603, 630, 670, 674, 804, 938, 1005, 1011, 1206, 1260, 1340, 1348, 1407, 1685, 1876, 2010, 2022, 2345, 2359, 2412, 2814, 3015, 3033, 3370, 4020, 4044, 4221, 4690, 4718, 5055, 5628, 6030, 6066, 6740, 7035, 7077, 8442, 9380, 9436, 10110, 11795, 12060, 12132, 14070, 14154, 15165, 16884, 20220, 21105, 21231, 22579, 23590, 28140, 28308, 30330, 35385, 42210, 42462, 45158, 47180, 60660, 67737, 70770, 84420, 84924, 90316, 106155, 112895, 135474, 141540, 158053, 203211, 212310, 225790, 270948, 316106, 338685, 406422, 424620, 451580, 474159, 632212, 677370, 790265, 812844, 948318, 1016055, 1354740, 1422477, 1580530, 1896636, 2032110, 2370795, 2844954, 3161060, 4064220, 4741590, 5689908, 7112385, 9483180, 14224770, 28449540]

約数ペア:

[(1, 28449540), (2, 14224770), (3, 9483180), (4, 7112385), (5, 5689908), (6, 4741590), (7, 4064220), (9, 3161060), (10, 2844954), (12, 2370795), (14, 2032110), (15, 1896636), (18, 1580530), (20, 1422477), (21, 1354740), (28, 1016055), (30, 948318), (35, 812844), (36, 790265), (42, 677370), (45, 632212), (60, 474159), (63, 451580), (67, 424620), (70, 406422), (84, 338685), (90, 316106), (105, 270948), (126, 225790), (134, 212310), (140, 203211), (180, 158053), (201, 141540), (210, 135474), (252, 112895), (268, 106155), (315, 90316), (335, 84924), (337, 84420), (402, 70770), (420, 67737), (469, 60660), (603, 47180), (630, 45158), (670, 42462), (674, 42210), (804, 35385), (938, 30330), (1005, 28308), (1011, 28140), (1206, 23590), (1260, 22579), (1340, 21231), (1348, 21105), (1407, 20220), (1685, 16884), (1876, 15165), (2010, 14154), (2022, 14070), (2345, 12132), (2359, 12060), (2412, 11795), (2814, 10110), (3015, 9436), (3033, 9380), (3370, 8442), (4020, 7077), (4044, 7035), (4221, 6740), (4690, 6066), (4718, 6030), (5055, 5628)]