28173990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5557}}^1$

素因数の和:5593

約数の個数: 48

約数和(自身を含む): 73232208

約数和(自身を除く): 45058218

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 5070, 5557, 11114, 16671, 27785, 33342, 55570, 72241, 83355, 144482, 166710, 216723, 361205, 433446, 722410, 939133, 1083615, 1878266, 2167230, 2817399, 4695665, 5634798, 9391330, 14086995, 28173990]

約数ペア:

[(1, 28173990), (2, 14086995), (3, 9391330), (5, 5634798), (6, 4695665), (10, 2817399), (13, 2167230), (15, 1878266), (26, 1083615), (30, 939133), (39, 722410), (65, 433446), (78, 361205), (130, 216723), (169, 166710), (195, 144482), (338, 83355), (390, 72241), (507, 55570), (845, 33342), (1014, 27785), (1690, 16671), (2535, 11114), (5070, 5557)]