61665660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 216216000

約数和(自身を除く): 154550340

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, 109, 126, 140, 180, 210, 218, 252, 315, 327, 420, 436, 449, 545, 630, 654, 763, 898, 981, 1090, 1260, 1308, 1347, 1526, 1635, 1796, 1962, 2180, 2245, 2289, 2694, 3052, 3143, 3270, 3815, 3924, 4041, 4490, 4578, 4905, 5388, 6286, 6540, 6735, 6867, 7630, 8082, 8980, 9156, 9429, 9810, 11445, 12572, 13470, 13734, 15260, 15715, 16164, 18858, 19620, 20205, 22890, 26940, 27468, 28287, 31430, 34335, 37716, 40410, 45780, 47145, 48941, 56574, 62860, 68670, 80820, 94290, 97882, 113148, 137340, 141435, 146823, 188580, 195764, 244705, 282870, 293646, 342587, 440469, 489410, 565740, 587292, 685174, 734115, 880938, 978820, 1027761, 1370348, 1468230, 1712935, 1761876, 2055522, 2202345, 2936460, 3083283, 3425870, 4111044, 4404690, 5138805, 6166566, 6851740, 8809380, 10277610, 12333132, 15416415, 20555220, 30832830, 61665660]

約数ペア:

[(1, 61665660), (2, 30832830), (3, 20555220), (4, 15416415), (5, 12333132), (6, 10277610), (7, 8809380), (9, 6851740), (10, 6166566), (12, 5138805), (14, 4404690), (15, 4111044), (18, 3425870), (20, 3083283), (21, 2936460), (28, 2202345), (30, 2055522), (35, 1761876), (36, 1712935), (42, 1468230), (45, 1370348), (60, 1027761), (63, 978820), (70, 880938), (84, 734115), (90, 685174), (105, 587292), (109, 565740), (126, 489410), (140, 440469), (180, 342587), (210, 293646), (218, 282870), (252, 244705), (315, 195764), (327, 188580), (420, 146823), (436, 141435), (449, 137340), (545, 113148), (630, 97882), (654, 94290), (763, 80820), (898, 68670), (981, 62860), (1090, 56574), (1260, 48941), (1308, 47145), (1347, 45780), (1526, 40410), (1635, 37716), (1796, 34335), (1962, 31430), (2180, 28287), (2245, 27468), (2289, 26940), (2694, 22890), (3052, 20205), (3143, 19620), (3270, 18858), (3815, 16164), (3924, 15715), (4041, 15260), (4490, 13734), (4578, 13470), (4905, 12572), (5388, 11445), (6286, 9810), (6540, 9429), (6735, 9156), (6867, 8980), (7630, 8082)]