129718784

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19489}}^1$

素因数の和:19520

約数の個数: 40

約数和(自身を含む): 279135780

約数和(自身を除く): 149416996

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3328, 6656, 19489, 38978, 77956, 155912, 253357, 311824, 506714, 623648, 1013428, 1247296, 2026856, 2494592, 4053712, 4989184, 8107424, 9978368, 16214848, 32429696, 64859392, 129718784]

約数ペア:

[(1, 129718784), (2, 64859392), (4, 32429696), (8, 16214848), (13, 9978368), (16, 8107424), (26, 4989184), (32, 4053712), (52, 2494592), (64, 2026856), (104, 1247296), (128, 1013428), (208, 623648), (256, 506714), (416, 311824), (512, 253357), (832, 155912), (1664, 77956), (3328, 38978), (6656, 19489)]