28639665

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 51787008

約数和(自身を除く): 23147343

約数列:

[1, 3, 5, 9, 15, 37, 45, 103, 111, 167, 185, 309, 333, 501, 515, 555, 835, 927, 1503, 1545, 1665, 2505, 3811, 4635, 6179, 7515, 11433, 17201, 18537, 19055, 30895, 34299, 51603, 55611, 57165, 86005, 92685, 154809, 171495, 258015, 278055, 636437, 774045, 1909311, 3182185, 5727933, 9546555, 28639665]

約数ペア:

[(1, 28639665), (3, 9546555), (5, 5727933), (9, 3182185), (15, 1909311), (37, 774045), (45, 636437), (103, 278055), (111, 258015), (167, 171495), (185, 154809), (309, 92685), (333, 86005), (501, 57165), (515, 55611), (555, 51603), (835, 34299), (927, 30895), (1503, 19055), (1545, 18537), (1665, 17201), (2505, 11433), (3811, 7515), (4635, 6179)]