28112364

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:695

約数の個数: 72

約数和(自身を含む): 81707808

約数和(自身を除く): 53595444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 281, 397, 562, 794, 843, 1124, 1191, 1588, 1686, 1967, 2382, 2529, 2779, 3372, 3573, 3934, 4764, 5058, 5558, 5901, 7146, 7868, 8337, 10116, 11116, 11802, 14292, 16674, 17703, 23604, 25011, 33348, 35406, 50022, 70812, 100044, 111557, 223114, 334671, 446228, 669342, 780899, 1004013, 1338684, 1561798, 2008026, 2342697, 3123596, 4016052, 4685394, 7028091, 9370788, 14056182, 28112364]

約数ペア:

[(1, 28112364), (2, 14056182), (3, 9370788), (4, 7028091), (6, 4685394), (7, 4016052), (9, 3123596), (12, 2342697), (14, 2008026), (18, 1561798), (21, 1338684), (28, 1004013), (36, 780899), (42, 669342), (63, 446228), (84, 334671), (126, 223114), (252, 111557), (281, 100044), (397, 70812), (562, 50022), (794, 35406), (843, 33348), (1124, 25011), (1191, 23604), (1588, 17703), (1686, 16674), (1967, 14292), (2382, 11802), (2529, 11116), (2779, 10116), (3372, 8337), (3573, 7868), (3934, 7146), (4764, 5901), (5058, 5558)]