19980181004

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2755127}}^1$

素因数の和:2755182

約数の個数: 36

約数和(自身を含む): 41773250736

約数和(自身を除く): 21793069732

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 3626, 7252, 2755127, 5510254, 11020508, 19285889, 38571778, 77143556, 101939699, 135001223, 203879398, 270002446, 407758796, 540004892, 713577893, 1427155786, 2854311572, 4995045251, 9990090502, 19980181004]

約数ペア:

[(1, 19980181004), (2, 9990090502), (4, 4995045251), (7, 2854311572), (14, 1427155786), (28, 713577893), (37, 540004892), (49, 407758796), (74, 270002446), (98, 203879398), (148, 135001223), (196, 101939699), (259, 77143556), (518, 38571778), (1036, 19285889), (1813, 11020508), (3626, 5510254), (7252, 2755127)]