281270210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{13781}}^1$

素因数の和:13958

約数の個数: 32

約数和(自身を含む): 548744112

約数和(自身を除く): 267473902

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 13781, 20410, 27562, 68905, 137810, 179153, 358306, 895765, 1791530, 2163617, 4327234, 10818085, 21636170, 28127021, 56254042, 140635105, 281270210]

約数ペア:

[(1, 281270210), (2, 140635105), (5, 56254042), (10, 28127021), (13, 21636170), (26, 10818085), (65, 4327234), (130, 2163617), (157, 1791530), (314, 895765), (785, 358306), (1570, 179153), (2041, 137810), (4082, 68905), (10205, 27562), (13781, 20410)]