207738905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 291755520

約数和(自身を除く): 84016615

約数列:

[1, 5, 11, 31, 37, 55, 89, 155, 185, 341, 407, 445, 979, 1147, 1369, 1705, 2035, 2759, 3293, 4895, 5735, 6845, 12617, 13795, 15059, 16465, 30349, 36223, 42439, 63085, 75295, 102083, 121841, 151745, 181115, 212195, 466829, 510415, 609205, 1122913, 1340251, 2334145, 3777071, 5614565, 6701255, 18885355, 41547781, 207738905]

約数ペア:

[(1, 207738905), (5, 41547781), (11, 18885355), (31, 6701255), (37, 5614565), (55, 3777071), (89, 2334145), (155, 1340251), (185, 1122913), (341, 609205), (407, 510415), (445, 466829), (979, 212195), (1147, 181115), (1369, 151745), (1705, 121841), (2035, 102083), (2759, 75295), (3293, 63085), (4895, 42439), (5735, 36223), (6845, 30349), (12617, 16465), (13795, 15059)]