77771890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7993}}^1$

素因数の和:8146

約数の個数: 32

約数和(自身を含む): 161159040

約数和(自身を除く): 83387150

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 4865, 7993, 9730, 15986, 39965, 55951, 79930, 111902, 279755, 559510, 1111027, 2222054, 5555135, 7777189, 11110270, 15554378, 38885945, 77771890]

約数ペア:

[(1, 77771890), (2, 38885945), (5, 15554378), (7, 11110270), (10, 7777189), (14, 5555135), (35, 2222054), (70, 1111027), (139, 559510), (278, 279755), (695, 111902), (973, 79930), (1390, 55951), (1946, 39965), (4865, 15986), (7993, 9730)]