210720840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2617}}^1$

素因数の和:2703

約数の個数: 128

約数和(自身を含む): 701205120

約数和(自身を除く): 490484280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2013, 2440, 2617, 2684, 3355, 3660, 4026, 5234, 5368, 6710, 7320, 7851, 8052, 10065, 10468, 13085, 13420, 15702, 16104, 20130, 20936, 26170, 26840, 28787, 31404, 39255, 40260, 52340, 57574, 62808, 78510, 80520, 86361, 104680, 115148, 143935, 157020, 159637, 172722, 230296, 287870, 314040, 319274, 345444, 431805, 478911, 575740, 638548, 690888, 798185, 863610, 957822, 1151480, 1277096, 1596370, 1727220, 1756007, 1915644, 2394555, 3192740, 3454440, 3512014, 3831288, 4789110, 5268021, 6385480, 7024028, 8780035, 9578220, 10536042, 14048056, 17560070, 19156440, 21072084, 26340105, 35120140, 42144168, 52680210, 70240280, 105360420, 210720840]

約数ペア:

[(1, 210720840), (2, 105360420), (3, 70240280), (4, 52680210), (5, 42144168), (6, 35120140), (8, 26340105), (10, 21072084), (11, 19156440), (12, 17560070), (15, 14048056), (20, 10536042), (22, 9578220), (24, 8780035), (30, 7024028), (33, 6385480), (40, 5268021), (44, 4789110), (55, 3831288), (60, 3512014), (61, 3454440), (66, 3192740), (88, 2394555), (110, 1915644), (120, 1756007), (122, 1727220), (132, 1596370), (165, 1277096), (183, 1151480), (220, 957822), (244, 863610), (264, 798185), (305, 690888), (330, 638548), (366, 575740), (440, 478911), (488, 431805), (610, 345444), (660, 319274), (671, 314040), (732, 287870), (915, 230296), (1220, 172722), (1320, 159637), (1342, 157020), (1464, 143935), (1830, 115148), (2013, 104680), (2440, 86361), (2617, 80520), (2684, 78510), (3355, 62808), (3660, 57574), (4026, 52340), (5234, 40260), (5368, 39255), (6710, 31404), (7320, 28787), (7851, 26840), (8052, 26170), (10065, 20936), (10468, 20130), (13085, 16104), (13420, 15702)]