208759735

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 269222400

約数和(自身を除く): 60462665

約数列:

[1, 5, 31, 37, 89, 155, 185, 409, 445, 1147, 2045, 2759, 3293, 5735, 12679, 13795, 15133, 16465, 36401, 63395, 75665, 102083, 182005, 469123, 510415, 1128431, 1346837, 2345615, 5642155, 6734185, 41751947, 208759735]

約数ペア:

[(1, 208759735), (5, 41751947), (31, 6734185), (37, 5642155), (89, 2345615), (155, 1346837), (185, 1128431), (409, 510415), (445, 469123), (1147, 182005), (2045, 102083), (2759, 75665), (3293, 63395), (5735, 36401), (12679, 16465), (13795, 15133)]