20031206

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 17224474

約数列:

[1, 2, 13, 19, 23, 26, 38, 41, 43, 46, 82, 86, 247, 299, 437, 494, 533, 559, 598, 779, 817, 874, 943, 989, 1066, 1118, 1558, 1634, 1763, 1886, 1978, 3526, 5681, 10127, 10621, 11362, 12259, 12857, 17917, 18791, 20254, 21242, 22919, 24518, 25714, 33497, 35834, 37582, 40549, 45838, 66994, 81098, 232921, 244283, 435461, 465842, 488566, 527137, 770431, 870922, 1054274, 1540862, 10015603, 20031206]

約数ペア:

[(1, 20031206), (2, 10015603), (13, 1540862), (19, 1054274), (23, 870922), (26, 770431), (38, 527137), (41, 488566), (43, 465842), (46, 435461), (82, 244283), (86, 232921), (247, 81098), (299, 66994), (437, 45838), (494, 40549), (533, 37582), (559, 35834), (598, 33497), (779, 25714), (817, 24518), (874, 22919), (943, 21242), (989, 20254), (1066, 18791), (1118, 17917), (1558, 12857), (1634, 12259), (1763, 11362), (1886, 10621), (1978, 10127), (3526, 5681)]