128473904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{1181}}^1$

素因数の和:1725

約数の個数: 40

約数和(自身を含む): 268805712

約数和(自身を除く): 140331808

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 523, 1046, 1181, 2092, 2362, 4184, 4724, 6799, 8368, 9448, 13598, 15353, 18896, 27196, 30706, 54392, 61412, 108784, 122824, 245648, 617663, 1235326, 2470652, 4941304, 8029619, 9882608, 16059238, 32118476, 64236952, 128473904]

約数ペア:

[(1, 128473904), (2, 64236952), (4, 32118476), (8, 16059238), (13, 9882608), (16, 8029619), (26, 4941304), (52, 2470652), (104, 1235326), (208, 617663), (523, 245648), (1046, 122824), (1181, 108784), (2092, 61412), (2362, 54392), (4184, 30706), (4724, 27196), (6799, 18896), (8368, 15353), (9448, 13598)]