19690440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2131}}^1$

素因数の和:2163

約数の個数: 128

約数和(自身を含む): 73681920

約数和(自身を除く): 53991480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2131, 2310, 3080, 4262, 4620, 6393, 8524, 9240, 10655, 12786, 14917, 17048, 21310, 23441, 25572, 29834, 31965, 42620, 44751, 46882, 51144, 59668, 63930, 70323, 74585, 85240, 89502, 93764, 117205, 119336, 127860, 140646, 149170, 164087, 179004, 187528, 223755, 234410, 255720, 281292, 298340, 328174, 351615, 358008, 447510, 468820, 492261, 562584, 596680, 656348, 703230, 820435, 895020, 937640, 984522, 1312696, 1406460, 1640870, 1790040, 1969044, 2461305, 2812920, 3281740, 3938088, 4922610, 6563480, 9845220, 19690440]

約数ペア:

[(1, 19690440), (2, 9845220), (3, 6563480), (4, 4922610), (5, 3938088), (6, 3281740), (7, 2812920), (8, 2461305), (10, 1969044), (11, 1790040), (12, 1640870), (14, 1406460), (15, 1312696), (20, 984522), (21, 937640), (22, 895020), (24, 820435), (28, 703230), (30, 656348), (33, 596680), (35, 562584), (40, 492261), (42, 468820), (44, 447510), (55, 358008), (56, 351615), (60, 328174), (66, 298340), (70, 281292), (77, 255720), (84, 234410), (88, 223755), (105, 187528), (110, 179004), (120, 164087), (132, 149170), (140, 140646), (154, 127860), (165, 119336), (168, 117205), (210, 93764), (220, 89502), (231, 85240), (264, 74585), (280, 70323), (308, 63930), (330, 59668), (385, 51144), (420, 46882), (440, 44751), (462, 42620), (616, 31965), (660, 29834), (770, 25572), (840, 23441), (924, 21310), (1155, 17048), (1320, 14917), (1540, 12786), (1848, 10655), (2131, 9240), (2310, 8524), (3080, 6393), (4262, 4620)]