20647550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 49711104

約数和(自身を除く): 29063554

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 31, 35, 50, 55, 62, 70, 77, 110, 154, 155, 173, 175, 217, 275, 310, 341, 346, 350, 385, 434, 550, 682, 770, 775, 865, 1085, 1211, 1550, 1705, 1730, 1903, 1925, 2170, 2387, 2422, 3410, 3806, 3850, 4325, 4774, 5363, 5425, 6055, 8525, 8650, 9515, 10726, 10850, 11935, 12110, 13321, 17050, 19030, 23870, 26642, 26815, 30275, 37541, 47575, 53630, 58993, 59675, 60550, 66605, 75082, 95150, 117986, 119350, 133210, 134075, 187705, 268150, 294965, 333025, 375410, 412951, 589930, 666050, 825902, 938525, 1474825, 1877050, 2064755, 2949650, 4129510, 10323775, 20647550]

約数ペア:

[(1, 20647550), (2, 10323775), (5, 4129510), (7, 2949650), (10, 2064755), (11, 1877050), (14, 1474825), (22, 938525), (25, 825902), (31, 666050), (35, 589930), (50, 412951), (55, 375410), (62, 333025), (70, 294965), (77, 268150), (110, 187705), (154, 134075), (155, 133210), (173, 119350), (175, 117986), (217, 95150), (275, 75082), (310, 66605), (341, 60550), (346, 59675), (350, 58993), (385, 53630), (434, 47575), (550, 37541), (682, 30275), (770, 26815), (775, 26642), (865, 23870), (1085, 19030), (1211, 17050), (1550, 13321), (1705, 12110), (1730, 11935), (1903, 10850), (1925, 10726), (2170, 9515), (2387, 8650), (2422, 8525), (3410, 6055), (3806, 5425), (3850, 5363), (4325, 4774)]