1311621516

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{487}}^1\times {\mathrm{947}}^1$

素因数の和:1523

約数の個数: 72

約数和(自身を含む): 3367902720

約数和(自身を除く): 2056281204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 487, 711, 947, 948, 974, 1422, 1461, 1894, 1948, 2841, 2844, 2922, 3788, 4383, 5682, 5844, 8523, 8766, 11364, 17046, 17532, 34092, 38473, 74813, 76946, 115419, 149626, 153892, 224439, 230838, 299252, 346257, 448878, 461189, 461676, 673317, 692514, 897756, 922378, 1346634, 1383567, 1385028, 1844756, 2693268, 2767134, 4150701, 5534268, 8301402, 16602804, 36433931, 72867862, 109301793, 145735724, 218603586, 327905379, 437207172, 655810758, 1311621516]

約数ペア:

[(1, 1311621516), (2, 655810758), (3, 437207172), (4, 327905379), (6, 218603586), (9, 145735724), (12, 109301793), (18, 72867862), (36, 36433931), (79, 16602804), (158, 8301402), (237, 5534268), (316, 4150701), (474, 2767134), (487, 2693268), (711, 1844756), (947, 1385028), (948, 1383567), (974, 1346634), (1422, 922378), (1461, 897756), (1894, 692514), (1948, 673317), (2841, 461676), (2844, 461189), (2922, 448878), (3788, 346257), (4383, 299252), (5682, 230838), (5844, 224439), (8523, 153892), (8766, 149626), (11364, 115419), (17046, 76946), (17532, 74813), (34092, 38473)]