77932990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 143428320

約数和(自身を除く): 65495330

約数列:

[1, 2, 5, 10, 61, 122, 251, 305, 502, 509, 610, 1018, 1255, 2510, 2545, 5090, 15311, 30622, 31049, 62098, 76555, 127759, 153110, 155245, 255518, 310490, 638795, 1277590, 7793299, 15586598, 38966495, 77932990]

約数ペア:

[(1, 77932990), (2, 38966495), (5, 15586598), (10, 7793299), (61, 1277590), (122, 638795), (251, 310490), (305, 255518), (502, 155245), (509, 153110), (610, 127759), (1018, 76555), (1255, 62098), (2510, 31049), (2545, 30622), (5090, 15311)]