18126550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 36872640

約数和(自身を除く): 18746090

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 353, 395, 650, 706, 790, 1027, 1765, 1975, 2054, 3530, 3950, 4589, 5135, 8825, 9178, 10270, 17650, 22945, 25675, 27887, 45890, 51350, 55774, 114725, 139435, 229450, 278870, 362531, 697175, 725062, 1394350, 1812655, 3625310, 9063275, 18126550]

約数ペア:

[(1, 18126550), (2, 9063275), (5, 3625310), (10, 1812655), (13, 1394350), (25, 725062), (26, 697175), (50, 362531), (65, 278870), (79, 229450), (130, 139435), (158, 114725), (325, 55774), (353, 51350), (395, 45890), (650, 27887), (706, 25675), (790, 22945), (1027, 17650), (1765, 10270), (1975, 9178), (2054, 8825), (3530, 5135), (3950, 4589)]