222451775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{353}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 341686464

約数和(自身を除く): 119234689

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 277, 325, 353, 455, 1385, 1765, 1939, 2275, 2471, 3601, 4589, 6925, 8825, 9695, 12355, 18005, 22945, 25207, 32123, 48475, 61775, 90025, 97781, 114725, 126035, 160615, 488905, 630175, 684467, 803075, 1271153, 2444525, 3422335, 6355765, 8898071, 17111675, 31778825, 44490355, 222451775]

約数ペア:

[(1, 222451775), (5, 44490355), (7, 31778825), (13, 17111675), (25, 8898071), (35, 6355765), (65, 3422335), (91, 2444525), (175, 1271153), (277, 803075), (325, 684467), (353, 630175), (455, 488905), (1385, 160615), (1765, 126035), (1939, 114725), (2275, 97781), (2471, 90025), (3601, 61775), (4589, 48475), (6925, 32123), (8825, 25207), (9695, 22945), (12355, 18005)]