127183780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{1709}}^1$

素因数の和:1840

約数の個数: 36

約数和(自身を含む): 271695060

約数和(自身を除く): 144511280

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1709, 3418, 3721, 6836, 7442, 8545, 14884, 17090, 18605, 34180, 37210, 74420, 104249, 208498, 416996, 521245, 1042490, 2084980, 6359189, 12718378, 25436756, 31795945, 63591890, 127183780]

約数ペア:

[(1, 127183780), (2, 63591890), (4, 31795945), (5, 25436756), (10, 12718378), (20, 6359189), (61, 2084980), (122, 1042490), (244, 521245), (305, 416996), (610, 208498), (1220, 104249), (1709, 74420), (3418, 37210), (3721, 34180), (6836, 18605), (7442, 17090), (8545, 14884)]