68907460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 153906480

約数和(自身を除く): 84999020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 389, 521, 778, 1042, 1556, 1945, 2084, 2605, 3890, 5210, 6613, 7780, 8857, 10420, 13226, 17714, 26452, 33065, 35428, 44285, 66130, 88570, 132260, 177140, 202669, 405338, 810676, 1013345, 2026690, 3445373, 4053380, 6890746, 13781492, 17226865, 34453730, 68907460]

約数ペア:

[(1, 68907460), (2, 34453730), (4, 17226865), (5, 13781492), (10, 6890746), (17, 4053380), (20, 3445373), (34, 2026690), (68, 1013345), (85, 810676), (170, 405338), (340, 202669), (389, 177140), (521, 132260), (778, 88570), (1042, 66130), (1556, 44285), (1945, 35428), (2084, 33065), (2605, 26452), (3890, 17714), (5210, 13226), (6613, 10420), (7780, 8857)]