31178191970

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1\times {\mathrm{557}}^1$

素因数の和:1175

約数の個数: 64

約数和(自身を含む): 57301662816

約数和(自身を除く): 26123470846

約数列:

[1, 2, 5, 10, 101, 157, 202, 314, 353, 505, 557, 706, 785, 1010, 1114, 1570, 1765, 2785, 3530, 5570, 15857, 31714, 35653, 55421, 56257, 71306, 79285, 87449, 110842, 112514, 158570, 174898, 178265, 196621, 277105, 281285, 356530, 393242, 437245, 554210, 562570, 874490, 983105, 1966210, 5597521, 8832349, 11195042, 17664698, 19858721, 27987605, 30869497, 39717442, 44161745, 55975210, 61738994, 88323490, 99293605, 154347485, 198587210, 308694970, 3117819197, 6235638394, 15589095985, 31178191970]

約数ペア:

[(1, 31178191970), (2, 15589095985), (5, 6235638394), (10, 3117819197), (101, 308694970), (157, 198587210), (202, 154347485), (314, 99293605), (353, 88323490), (505, 61738994), (557, 55975210), (706, 44161745), (785, 39717442), (1010, 30869497), (1114, 27987605), (1570, 19858721), (1765, 17664698), (2785, 11195042), (3530, 8832349), (5570, 5597521), (15857, 1966210), (31714, 983105), (35653, 874490), (55421, 562570), (56257, 554210), (71306, 437245), (79285, 393242), (87449, 356530), (110842, 281285), (112514, 277105), (158570, 196621), (174898, 178265)]