20020026

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 45416448

約数和(自身を除く): 25396422

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 47, 78, 86, 94, 127, 129, 141, 254, 258, 282, 381, 559, 611, 762, 1118, 1222, 1651, 1677, 1833, 2021, 3302, 3354, 3666, 4042, 4953, 5461, 5969, 6063, 9906, 10922, 11938, 12126, 16383, 17907, 26273, 32766, 35814, 52546, 70993, 77597, 78819, 141986, 155194, 157638, 212979, 232791, 256667, 425958, 465582, 513334, 770001, 1540002, 3336671, 6673342, 10010013, 20020026]

約数ペア:

[(1, 20020026), (2, 10010013), (3, 6673342), (6, 3336671), (13, 1540002), (26, 770001), (39, 513334), (43, 465582), (47, 425958), (78, 256667), (86, 232791), (94, 212979), (127, 157638), (129, 155194), (141, 141986), (254, 78819), (258, 77597), (282, 70993), (381, 52546), (559, 35814), (611, 32766), (762, 26273), (1118, 17907), (1222, 16383), (1651, 12126), (1677, 11938), (1833, 10922), (2021, 9906), (3302, 6063), (3354, 5969), (3666, 5461), (4042, 4953)]