28028715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 25677525

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 73, 143, 165, 179, 195, 219, 365, 429, 537, 715, 803, 895, 949, 1095, 1969, 2145, 2327, 2409, 2685, 2847, 4015, 4745, 5907, 6981, 9845, 10439, 11635, 12045, 13067, 14235, 25597, 29535, 31317, 34905, 39201, 52195, 65335, 76791, 127985, 143737, 156585, 169871, 196005, 383955, 431211, 509613, 718685, 849355, 1868581, 2156055, 2548065, 5605743, 9342905, 28028715]

約数ペア:

[(1, 28028715), (3, 9342905), (5, 5605743), (11, 2548065), (13, 2156055), (15, 1868581), (33, 849355), (39, 718685), (55, 509613), (65, 431211), (73, 383955), (143, 196005), (165, 169871), (179, 156585), (195, 143737), (219, 127985), (365, 76791), (429, 65335), (537, 52195), (715, 39201), (803, 34905), (895, 31317), (949, 29535), (1095, 25597), (1969, 14235), (2145, 13067), (2327, 12045), (2409, 11635), (2685, 10439), (2847, 9845), (4015, 6981), (4745, 5907)]