1388394420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{27779}}^1$

素因数の和:27822

約数の個数: 144

約数和(自身を含む): 4788383040

約数和(自身を除く): 3399988620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1666, 1785, 2380, 2499, 2940, 3332, 3570, 4165, 4998, 7140, 8330, 9996, 12495, 16660, 24990, 27779, 49980, 55558, 83337, 111116, 138895, 166674, 194453, 277790, 333348, 388906, 416685, 472243, 555580, 583359, 777812, 833370, 944486, 972265, 1166718, 1361171, 1416729, 1666740, 1888972, 1944530, 2333436, 2361215, 2722342, 2833458, 2916795, 3305701, 3889060, 4083513, 4722430, 5444684, 5666916, 5833590, 6611402, 6805855, 7083645, 8167026, 9444860, 9917103, 11667180, 13222804, 13611710, 14167290, 16334052, 16528505, 19834206, 20417565, 23139907, 27223420, 28334580, 33057010, 39668412, 40835130, 46279814, 49585515, 66114020, 69419721, 81670260, 92559628, 99171030, 115699535, 138839442, 198342060, 231399070, 277678884, 347098605, 462798140, 694197210, 1388394420]

約数ペア:

[(1, 1388394420), (2, 694197210), (3, 462798140), (4, 347098605), (5, 277678884), (6, 231399070), (7, 198342060), (10, 138839442), (12, 115699535), (14, 99171030), (15, 92559628), (17, 81670260), (20, 69419721), (21, 66114020), (28, 49585515), (30, 46279814), (34, 40835130), (35, 39668412), (42, 33057010), (49, 28334580), (51, 27223420), (60, 23139907), (68, 20417565), (70, 19834206), (84, 16528505), (85, 16334052), (98, 14167290), (102, 13611710), (105, 13222804), (119, 11667180), (140, 9917103), (147, 9444860), (170, 8167026), (196, 7083645), (204, 6805855), (210, 6611402), (238, 5833590), (245, 5666916), (255, 5444684), (294, 4722430), (340, 4083513), (357, 3889060), (420, 3305701), (476, 2916795), (490, 2833458), (510, 2722342), (588, 2361215), (595, 2333436), (714, 1944530), (735, 1888972), (833, 1666740), (980, 1416729), (1020, 1361171), (1190, 1166718), (1428, 972265), (1470, 944486), (1666, 833370), (1785, 777812), (2380, 583359), (2499, 555580), (2940, 472243), (3332, 416685), (3570, 388906), (4165, 333348), (4998, 277790), (7140, 194453), (8330, 166674), (9996, 138895), (12495, 111116), (16660, 83337), (24990, 55558), (27779, 49980)]