128507724

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 333329360

約数和(自身を除く): 204821636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 139, 183, 244, 278, 366, 417, 421, 549, 556, 732, 834, 842, 1098, 1251, 1263, 1668, 1684, 2196, 2502, 2526, 3789, 5004, 5052, 7578, 8479, 15156, 16958, 25437, 25681, 33916, 50874, 51362, 58519, 76311, 77043, 101748, 102724, 117038, 152622, 154086, 175557, 231129, 234076, 305244, 308172, 351114, 462258, 526671, 702228, 924516, 1053342, 2106684, 3569659, 7139318, 10708977, 14278636, 21417954, 32126931, 42835908, 64253862, 128507724]

約数ペア:

[(1, 128507724), (2, 64253862), (3, 42835908), (4, 32126931), (6, 21417954), (9, 14278636), (12, 10708977), (18, 7139318), (36, 3569659), (61, 2106684), (122, 1053342), (139, 924516), (183, 702228), (244, 526671), (278, 462258), (366, 351114), (417, 308172), (421, 305244), (549, 234076), (556, 231129), (732, 175557), (834, 154086), (842, 152622), (1098, 117038), (1251, 102724), (1263, 101748), (1668, 77043), (1684, 76311), (2196, 58519), (2502, 51362), (2526, 50874), (3789, 33916), (5004, 25681), (5052, 25437), (7578, 16958), (8479, 15156)]