55980405

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:487

約数の個数: 72

約数和(自身を含む): 111508488

約数和(自身を除く): 55528083

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 169, 195, 221, 255, 433, 507, 585, 663, 765, 845, 1105, 1299, 1521, 1989, 2165, 2535, 2873, 3315, 3897, 5629, 6495, 7361, 7605, 8619, 9945, 14365, 16887, 19485, 22083, 25857, 28145, 36805, 43095, 50661, 66249, 73177, 84435, 95693, 110415, 129285, 219531, 253305, 287079, 331245, 365885, 478465, 658593, 861237, 1097655, 1244009, 1435395, 3292965, 3732027, 4306185, 6220045, 11196081, 18660135, 55980405]

約数ペア:

[(1, 55980405), (3, 18660135), (5, 11196081), (9, 6220045), (13, 4306185), (15, 3732027), (17, 3292965), (39, 1435395), (45, 1244009), (51, 1097655), (65, 861237), (85, 658593), (117, 478465), (153, 365885), (169, 331245), (195, 287079), (221, 253305), (255, 219531), (433, 129285), (507, 110415), (585, 95693), (663, 84435), (765, 73177), (845, 66249), (1105, 50661), (1299, 43095), (1521, 36805), (1989, 28145), (2165, 25857), (2535, 22083), (2873, 19485), (3315, 16887), (3897, 14365), (5629, 9945), (6495, 8619), (7361, 7605)]