1218965880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{29789}}^1$

素因数の和:29845

約数の個数: 128

約数和(自身を含む): 4118169600

約数和(自身を除く): 2899203720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 31, 33, 40, 44, 55, 60, 62, 66, 88, 93, 110, 120, 124, 132, 155, 165, 186, 220, 248, 264, 310, 330, 341, 372, 440, 465, 620, 660, 682, 744, 930, 1023, 1240, 1320, 1364, 1705, 1860, 2046, 2728, 3410, 3720, 4092, 5115, 6820, 8184, 10230, 13640, 20460, 29789, 40920, 59578, 89367, 119156, 148945, 178734, 238312, 297890, 327679, 357468, 446835, 595780, 655358, 714936, 893670, 923459, 983037, 1191560, 1310716, 1638395, 1787340, 1846918, 1966074, 2621432, 2770377, 3276790, 3574680, 3693836, 3932148, 4617295, 4915185, 5540754, 6553580, 7387672, 7864296, 9234590, 9830370, 10158049, 11081508, 13107160, 13851885, 18469180, 19660740, 20316098, 22163016, 27703770, 30474147, 36938360, 39321480, 40632196, 50790245, 55407540, 60948294, 81264392, 101580490, 110815080, 121896588, 152370735, 203160980, 243793176, 304741470, 406321960, 609482940, 1218965880]

約数ペア:

[(1, 1218965880), (2, 609482940), (3, 406321960), (4, 304741470), (5, 243793176), (6, 203160980), (8, 152370735), (10, 121896588), (11, 110815080), (12, 101580490), (15, 81264392), (20, 60948294), (22, 55407540), (24, 50790245), (30, 40632196), (31, 39321480), (33, 36938360), (40, 30474147), (44, 27703770), (55, 22163016), (60, 20316098), (62, 19660740), (66, 18469180), (88, 13851885), (93, 13107160), (110, 11081508), (120, 10158049), (124, 9830370), (132, 9234590), (155, 7864296), (165, 7387672), (186, 6553580), (220, 5540754), (248, 4915185), (264, 4617295), (310, 3932148), (330, 3693836), (341, 3574680), (372, 3276790), (440, 2770377), (465, 2621432), (620, 1966074), (660, 1846918), (682, 1787340), (744, 1638395), (930, 1310716), (1023, 1191560), (1240, 983037), (1320, 923459), (1364, 893670), (1705, 714936), (1860, 655358), (2046, 595780), (2728, 446835), (3410, 357468), (3720, 327679), (4092, 297890), (5115, 238312), (6820, 178734), (8184, 148945), (10230, 119156), (13640, 89367), (20460, 59578), (29789, 40920)]