128492749

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 177785280

約数和(自身を除く): 49292531

約数列:

[1, 7, 11, 17, 37, 49, 77, 119, 187, 259, 379, 407, 539, 629, 833, 1309, 1813, 2653, 2849, 4169, 4403, 6443, 6919, 9163, 14023, 18571, 19943, 29183, 30821, 45101, 48433, 70873, 98161, 154253, 204281, 238391, 315707, 339031, 496111, 687127, 1079771, 1668737, 2622301, 3472777, 7558397, 11681159, 18356107, 128492749]

約数ペア:

[(1, 128492749), (7, 18356107), (11, 11681159), (17, 7558397), (37, 3472777), (49, 2622301), (77, 1668737), (119, 1079771), (187, 687127), (259, 496111), (379, 339031), (407, 315707), (539, 238391), (629, 204281), (833, 154253), (1309, 98161), (1813, 70873), (2653, 48433), (2849, 45101), (4169, 30821), (4403, 29183), (6443, 19943), (6919, 18571), (9163, 14023)]