20683740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{37}}^1$

素因数の和:89

約数の個数: 192

約数和(自身を含む): 74769408

約数和(自身を除く): 54085668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 37, 42, 44, 55, 60, 66, 70, 74, 77, 84, 105, 110, 111, 121, 132, 140, 148, 154, 165, 185, 210, 220, 222, 231, 242, 259, 308, 330, 363, 370, 385, 407, 420, 444, 462, 484, 518, 555, 605, 660, 726, 740, 770, 777, 814, 847, 924, 1036, 1110, 1155, 1210, 1221, 1295, 1331, 1452, 1540, 1554, 1628, 1694, 1815, 2035, 2220, 2310, 2420, 2442, 2541, 2590, 2662, 2849, 3108, 3388, 3630, 3885, 3993, 4070, 4235, 4477, 4620, 4884, 5082, 5180, 5324, 5698, 6105, 6655, 7260, 7770, 7986, 8140, 8470, 8547, 8954, 9317, 10164, 11396, 12210, 12705, 13310, 13431, 14245, 15540, 15972, 16940, 17094, 17908, 18634, 19965, 22385, 24420, 25410, 26620, 26862, 27951, 28490, 31339, 34188, 37268, 39930, 42735, 44770, 46585, 49247, 50820, 53724, 55902, 56980, 62678, 67155, 79860, 85470, 89540, 93170, 94017, 98494, 111804, 125356, 134310, 139755, 147741, 156695, 170940, 186340, 188034, 196988, 246235, 268620, 279510, 295482, 313390, 344729, 376068, 470085, 492470, 559020, 590964, 626780, 689458, 738705, 940170, 984940, 1034187, 1378916, 1477410, 1723645, 1880340, 2068374, 2954820, 3447290, 4136748, 5170935, 6894580, 10341870, 20683740]

約数ペア:

[(1, 20683740), (2, 10341870), (3, 6894580), (4, 5170935), (5, 4136748), (6, 3447290), (7, 2954820), (10, 2068374), (11, 1880340), (12, 1723645), (14, 1477410), (15, 1378916), (20, 1034187), (21, 984940), (22, 940170), (28, 738705), (30, 689458), (33, 626780), (35, 590964), (37, 559020), (42, 492470), (44, 470085), (55, 376068), (60, 344729), (66, 313390), (70, 295482), (74, 279510), (77, 268620), (84, 246235), (105, 196988), (110, 188034), (111, 186340), (121, 170940), (132, 156695), (140, 147741), (148, 139755), (154, 134310), (165, 125356), (185, 111804), (210, 98494), (220, 94017), (222, 93170), (231, 89540), (242, 85470), (259, 79860), (308, 67155), (330, 62678), (363, 56980), (370, 55902), (385, 53724), (407, 50820), (420, 49247), (444, 46585), (462, 44770), (484, 42735), (518, 39930), (555, 37268), (605, 34188), (660, 31339), (726, 28490), (740, 27951), (770, 26862), (777, 26620), (814, 25410), (847, 24420), (924, 22385), (1036, 19965), (1110, 18634), (1155, 17908), (1210, 17094), (1221, 16940), (1295, 15972), (1331, 15540), (1452, 14245), (1540, 13431), (1554, 13310), (1628, 12705), (1694, 12210), (1815, 11396), (2035, 10164), (2220, 9317), (2310, 8954), (2420, 8547), (2442, 8470), (2541, 8140), (2590, 7986), (2662, 7770), (2849, 7260), (3108, 6655), (3388, 6105), (3630, 5698), (3885, 5324), (3993, 5180), (4070, 5082), (4235, 4884), (4477, 4620)]