81026820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{601}}^1$

素因数の和:730

約数の個数: 144

約数和(自身を含む): 283989888

約数和(自身を除く): 202963068

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, 105, 107, 126, 140, 180, 210, 214, 252, 315, 321, 420, 428, 535, 601, 630, 642, 749, 963, 1070, 1202, 1260, 1284, 1498, 1605, 1803, 1926, 2140, 2247, 2404, 2996, 3005, 3210, 3606, 3745, 3852, 4207, 4494, 4815, 5409, 6010, 6420, 6741, 7212, 7490, 8414, 8988, 9015, 9630, 10818, 11235, 12020, 12621, 13482, 14980, 16828, 18030, 19260, 21035, 21636, 22470, 25242, 26964, 27045, 33705, 36060, 37863, 42070, 44940, 50484, 54090, 63105, 64307, 67410, 75726, 84140, 108180, 126210, 128614, 134820, 151452, 189315, 192921, 252420, 257228, 321535, 378630, 385842, 450149, 578763, 643070, 757260, 771684, 900298, 964605, 1157526, 1286140, 1350447, 1800596, 1929210, 2250745, 2315052, 2700894, 2893815, 3858420, 4051341, 4501490, 5401788, 5787630, 6752235, 8102682, 9002980, 11575260, 13504470, 16205364, 20256705, 27008940, 40513410, 81026820]

約数ペア:

[(1, 81026820), (2, 40513410), (3, 27008940), (4, 20256705), (5, 16205364), (6, 13504470), (7, 11575260), (9, 9002980), (10, 8102682), (12, 6752235), (14, 5787630), (15, 5401788), (18, 4501490), (20, 4051341), (21, 3858420), (28, 2893815), (30, 2700894), (35, 2315052), (36, 2250745), (42, 1929210), (45, 1800596), (60, 1350447), (63, 1286140), (70, 1157526), (84, 964605), (90, 900298), (105, 771684), (107, 757260), (126, 643070), (140, 578763), (180, 450149), (210, 385842), (214, 378630), (252, 321535), (315, 257228), (321, 252420), (420, 192921), (428, 189315), (535, 151452), (601, 134820), (630, 128614), (642, 126210), (749, 108180), (963, 84140), (1070, 75726), (1202, 67410), (1260, 64307), (1284, 63105), (1498, 54090), (1605, 50484), (1803, 44940), (1926, 42070), (2140, 37863), (2247, 36060), (2404, 33705), (2996, 27045), (3005, 26964), (3210, 25242), (3606, 22470), (3745, 21636), (3852, 21035), (4207, 19260), (4494, 18030), (4815, 16828), (5409, 14980), (6010, 13482), (6420, 12621), (6741, 12020), (7212, 11235), (7490, 10818), (8414, 9630), (8988, 9015)]