28628478

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 80

約数和(自身を含む): 68999040

約数和(自身を除く): 40370562

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 71, 81, 114, 131, 142, 162, 171, 213, 262, 342, 393, 426, 513, 639, 786, 1026, 1179, 1278, 1349, 1539, 1917, 2358, 2489, 2698, 3078, 3537, 3834, 4047, 4978, 5751, 7074, 7467, 8094, 9301, 10611, 11502, 12141, 14934, 18602, 21222, 22401, 24282, 27903, 36423, 44802, 55806, 67203, 72846, 83709, 109269, 134406, 167418, 176719, 201609, 218538, 251127, 353438, 403218, 502254, 530157, 753381, 1060314, 1506762, 1590471, 3180942, 4771413, 9542826, 14314239, 28628478]

約数ペア:

[(1, 28628478), (2, 14314239), (3, 9542826), (6, 4771413), (9, 3180942), (18, 1590471), (19, 1506762), (27, 1060314), (38, 753381), (54, 530157), (57, 502254), (71, 403218), (81, 353438), (114, 251127), (131, 218538), (142, 201609), (162, 176719), (171, 167418), (213, 134406), (262, 109269), (342, 83709), (393, 72846), (426, 67203), (513, 55806), (639, 44802), (786, 36423), (1026, 27903), (1179, 24282), (1278, 22401), (1349, 21222), (1539, 18602), (1917, 14934), (2358, 12141), (2489, 11502), (2698, 10611), (3078, 9301), (3537, 8094), (3834, 7467), (4047, 7074), (4978, 5751)]