28919385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1579}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 56197440

約数和(自身を除く): 27278055

約数列:

[1, 3, 5, 9, 11, 15, 33, 37, 45, 55, 99, 111, 165, 185, 333, 407, 495, 555, 1221, 1579, 1665, 2035, 3663, 4737, 6105, 7895, 14211, 17369, 18315, 23685, 52107, 58423, 71055, 86845, 156321, 175269, 260535, 292115, 525807, 642653, 781605, 876345, 1927959, 2629035, 3213265, 5783877, 9639795, 28919385]

約数ペア:

[(1, 28919385), (3, 9639795), (5, 5783877), (9, 3213265), (11, 2629035), (15, 1927959), (33, 876345), (37, 781605), (45, 642653), (55, 525807), (99, 292115), (111, 260535), (165, 175269), (185, 156321), (333, 86845), (407, 71055), (495, 58423), (555, 52107), (1221, 23685), (1579, 18315), (1665, 17369), (2035, 14211), (3663, 7895), (4737, 6105)]