781919406

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:771

約数の個数: 80

約数和(自身を含む): 1793975040

約数和(自身を除く): 1012055634

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 107, 158, 162, 214, 237, 321, 474, 571, 642, 711, 963, 1142, 1422, 1713, 1926, 2133, 2889, 3426, 4266, 5139, 5778, 6399, 8453, 8667, 10278, 12798, 15417, 16906, 17334, 25359, 30834, 45109, 46251, 50718, 61097, 76077, 90218, 92502, 122194, 135327, 152154, 183291, 228231, 270654, 366582, 405981, 456462, 549873, 684693, 811962, 1099746, 1217943, 1369386, 1649619, 2435886, 3299238, 3653829, 4826663, 4948857, 7307658, 9653326, 9897714, 14479989, 28959978, 43439967, 86879934, 130319901, 260639802, 390959703, 781919406]

約数ペア:

[(1, 781919406), (2, 390959703), (3, 260639802), (6, 130319901), (9, 86879934), (18, 43439967), (27, 28959978), (54, 14479989), (79, 9897714), (81, 9653326), (107, 7307658), (158, 4948857), (162, 4826663), (214, 3653829), (237, 3299238), (321, 2435886), (474, 1649619), (571, 1369386), (642, 1217943), (711, 1099746), (963, 811962), (1142, 684693), (1422, 549873), (1713, 456462), (1926, 405981), (2133, 366582), (2889, 270654), (3426, 228231), (4266, 183291), (5139, 152154), (5778, 135327), (6399, 122194), (8453, 92502), (8667, 90218), (10278, 76077), (12798, 61097), (15417, 50718), (16906, 46251), (17334, 45109), (25359, 30834)]