20647110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 38450490

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 19, 22, 30, 33, 37, 38, 55, 57, 66, 74, 89, 95, 110, 111, 114, 165, 178, 185, 190, 209, 222, 267, 285, 330, 370, 407, 418, 445, 534, 555, 570, 627, 703, 814, 890, 979, 1045, 1110, 1221, 1254, 1335, 1406, 1691, 1958, 2035, 2090, 2109, 2442, 2670, 2937, 3135, 3293, 3382, 3515, 4070, 4218, 4895, 5073, 5874, 6105, 6270, 6586, 7030, 7733, 8455, 9790, 9879, 10146, 10545, 12210, 14685, 15466, 16465, 16910, 18601, 19758, 21090, 23199, 25365, 29370, 32930, 36223, 37202, 38665, 46398, 49395, 50730, 55803, 62567, 72446, 77330, 93005, 98790, 108669, 111606, 115995, 125134, 181115, 186010, 187701, 217338, 231990, 279015, 312835, 362230, 375402, 543345, 558030, 625670, 688237, 938505, 1086690, 1376474, 1877010, 2064711, 3441185, 4129422, 6882370, 10323555, 20647110]

約数ペア:

[(1, 20647110), (2, 10323555), (3, 6882370), (5, 4129422), (6, 3441185), (10, 2064711), (11, 1877010), (15, 1376474), (19, 1086690), (22, 938505), (30, 688237), (33, 625670), (37, 558030), (38, 543345), (55, 375402), (57, 362230), (66, 312835), (74, 279015), (89, 231990), (95, 217338), (110, 187701), (111, 186010), (114, 181115), (165, 125134), (178, 115995), (185, 111606), (190, 108669), (209, 98790), (222, 93005), (267, 77330), (285, 72446), (330, 62567), (370, 55803), (407, 50730), (418, 49395), (445, 46398), (534, 38665), (555, 37202), (570, 36223), (627, 32930), (703, 29370), (814, 25365), (890, 23199), (979, 21090), (1045, 19758), (1110, 18601), (1221, 16910), (1254, 16465), (1335, 15466), (1406, 14685), (1691, 12210), (1958, 10545), (2035, 10146), (2090, 9879), (2109, 9790), (2442, 8455), (2670, 7733), (2937, 7030), (3135, 6586), (3293, 6270), (3382, 6105), (3515, 5874), (4070, 5073), (4218, 4895)]