28742895

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 52190112

約数和(自身を除く): 23447217

約数列:

[1, 3, 5, 9, 15, 37, 45, 61, 111, 183, 185, 283, 305, 333, 549, 555, 849, 915, 1415, 1665, 2257, 2547, 2745, 4245, 6771, 10471, 11285, 12735, 17263, 20313, 31413, 33855, 51789, 52355, 86315, 94239, 101565, 155367, 157065, 258945, 471195, 638731, 776835, 1916193, 3193655, 5748579, 9580965, 28742895]

約数ペア:

[(1, 28742895), (3, 9580965), (5, 5748579), (9, 3193655), (15, 1916193), (37, 776835), (45, 638731), (61, 471195), (111, 258945), (183, 157065), (185, 155367), (283, 101565), (305, 94239), (333, 86315), (549, 52355), (555, 51789), (849, 33855), (915, 31413), (1415, 20313), (1665, 17263), (2257, 12735), (2547, 11285), (2745, 10471), (4245, 6771)]