20646360

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2731}}^1$

素因数の和:2758

約数の個数: 128

約数和(自身を含む): 78681600

約数和(自身を除く): 58035240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2731, 3780, 5462, 7560, 8193, 10924, 13655, 16386, 19117, 21848, 24579, 27310, 32772, 38234, 40965, 49158, 54620, 57351, 65544, 73737, 76468, 81930, 95585, 98316, 109240, 114702, 122895, 147474, 152936, 163860, 172053, 191170, 196632, 229404, 245790, 286755, 294948, 327720, 344106, 368685, 382340, 458808, 491580, 516159, 573510, 589896, 688212, 737370, 764680, 860265, 983160, 1032318, 1147020, 1376424, 1474740, 1720530, 2064636, 2294040, 2580795, 2949480, 3441060, 4129272, 5161590, 6882120, 10323180, 20646360]

約数ペア:

[(1, 20646360), (2, 10323180), (3, 6882120), (4, 5161590), (5, 4129272), (6, 3441060), (7, 2949480), (8, 2580795), (9, 2294040), (10, 2064636), (12, 1720530), (14, 1474740), (15, 1376424), (18, 1147020), (20, 1032318), (21, 983160), (24, 860265), (27, 764680), (28, 737370), (30, 688212), (35, 589896), (36, 573510), (40, 516159), (42, 491580), (45, 458808), (54, 382340), (56, 368685), (60, 344106), (63, 327720), (70, 294948), (72, 286755), (84, 245790), (90, 229404), (105, 196632), (108, 191170), (120, 172053), (126, 163860), (135, 152936), (140, 147474), (168, 122895), (180, 114702), (189, 109240), (210, 98316), (216, 95585), (252, 81930), (270, 76468), (280, 73737), (315, 65544), (360, 57351), (378, 54620), (420, 49158), (504, 40965), (540, 38234), (630, 32772), (756, 27310), (840, 24579), (945, 21848), (1080, 19117), (1260, 16386), (1512, 13655), (1890, 10924), (2520, 8193), (2731, 7560), (3780, 5462)]