28303335

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 22914585

約数列:

[1, 3, 5, 9, 15, 37, 45, 89, 111, 185, 191, 267, 333, 445, 555, 573, 801, 955, 1335, 1665, 1719, 2865, 3293, 4005, 7067, 8595, 9879, 16465, 16999, 21201, 29637, 35335, 49395, 50997, 63603, 84995, 106005, 148185, 152991, 254985, 318015, 628963, 764955, 1886889, 3144815, 5660667, 9434445, 28303335]

約数ペア:

[(1, 28303335), (3, 9434445), (5, 5660667), (9, 3144815), (15, 1886889), (37, 764955), (45, 628963), (89, 318015), (111, 254985), (185, 152991), (191, 148185), (267, 106005), (333, 84995), (445, 63603), (555, 50997), (573, 49395), (801, 35335), (955, 29637), (1335, 21201), (1665, 16999), (1719, 16465), (2865, 9879), (3293, 8595), (4005, 7067)]